Repair and Diagnosis (Single Page)
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Wiring Diagrams- System Wiring Diagrams
- Using lemon2025'S Wiring Diagrams
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- Description
- Operation
- Component Locations
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- Self-Diagnostic System
- System Tests
- Communications
- Notes
- Bus (+) &/Or Bus (-) Open
- Bus (+) & Bus (-) Shorted Together
- Bus Bias Too High/Too Low
- No Bus Bias
- No Response From Air Bag Control Module
- No Response From Instrument Cluster
- No Response From Powertrain Control Module
- No Response From Sentry Key Immobilizer Module
- No Termination
- Not Receiving Bus Messages Correctly
- Short To 5 Volts
- Short To Battery
- Short To Ground
- Instrument Cluster
- Sentry Key Immobilizer System
- Notes
- Antenna Failure, COP Failure, EEPROM Failure, Internal Faults, RAM Failure, Serial Link Internal Or Stack Overflow Failure
- PCM Status Failure, Rolling Code Failure Or Serial Link External Fault
- Transponder Cyclic Redundancy Check Failure, Transponder Communication Failure, Transponder Id Mismatch, Or Transponder Response Mismatch
- VIN Mismatch
- Communications
- Verification Tests
- Removal & Installation
- Wiring Diagrams
- Body Control Modules
- Communication Devices
- Body Control Modules
- Description
- Operation
- Component Locations
- Programming
- Service Precautions
- Self-Diagnostic System
- System Tests
- Communications
- Notes
- Bus (+) &/Or Bus (-) Open
- Bus (+) & Bus (-) Shorted Together
- Bus Bias Too High/Too Low
- No Bus Bias
- No Response From Air Bag Control Module
- No Response From Instrument Cluster
- No Response From Powertrain Control Module
- No Response From Sentry Key Immobilizer Module
- No Termination
- Not Receiving Bus Messages Correctly
- Short To 5 Volts
- Short To Battery
- Short To Ground
- Instrument Cluster
- Sentry Key Immobilizer System
- Notes
- Antenna Failure, COP Failure, EEPROM Failure, Internal Faults, RAM Failure, Serial Link Internal Or Stack Overflow Failure
- PCM Status Failure, Rolling Code Failure Or Serial Link External Fault
- Transponder Cyclic Redundancy Check Failure, Transponder Communication Failure, Transponder Id Mismatch, Or Transponder Response Mismatch
- VIN Mismatch
- Communications
- Verification Tests
- Removal & Installation
- Wiring Diagrams
- Body Control Modules
- Cruise Control Systems
- Description
- Operation
- Component Locations
- Connector Identification
- Adjustments
- Trouble Shooting
- Self-Diagnostic System
- Diagnostic Tests
- DTC P0500: No Vehicle Speed Sensor Signal
- DTC P1595: Speed Control Solenoid Circuits (CHEROKEE)
- DTC P1595: Speed Control Solenoid Circuits (Wrangler)
- DTC P1596: Speed Control Switch Always High (CHEROKEE)
- DTC P1596: Speed Control Switch Always High (Wrangler)
- DTC P1597: Speed Control Switch Always Low
- DTC P1683: Speed Control Power Relay Circuit Or 12-Volt Driver Circuit
- DTC P1899: Park/Neutral Position (PNP) Switch Stuck In Park Or In Gear
- System Tests
- Component Tests
- Verification Tests
- Removal & Installation
- Wiring Diagrams
- Exterior Lights
- Gauges & Instrument Panels
- Description
- System Tests
- Component Tests
- Removal & Installation
- Wiring Diagrams
- Headlights
- Heated Glass/Defoggers
- Interior/Illumination Lights
- Steering Column Switches
- Warning Systems
- Wiper/Washer Systems
- Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
- Body & Frame
- Body, Cab Control Systems
- Body Control Modules
- Description
- Operation
- Component Locations
- Programming
- Service Precautions
- Self-Diagnostic System
- System Tests
- Communications
- Notes
- Bus (+) &/Or Bus (-) Open
- Bus (+) & Bus (-) Shorted Together
- Bus Bias Too High/Too Low
- No Bus Bias
- No Response From Air Bag Control Module
- No Response From Instrument Cluster
- No Response From Powertrain Control Module
- No Response From Sentry Key Immobilizer Module
- No Termination
- Not Receiving Bus Messages Correctly
- Short To 5 Volts
- Short To Battery
- Short To Ground
- Instrument Cluster
- Sentry Key Immobilizer System
- Notes
- Antenna Failure, COP Failure, EEPROM Failure, Internal Faults, RAM Failure, Serial Link Internal Or Stack Overflow Failure
- PCM Status Failure, Rolling Code Failure Or Serial Link External Fault
- Transponder Cyclic Redundancy Check Failure, Transponder Communication Failure, Transponder Id Mismatch, Or Transponder Response Mismatch
- VIN Mismatch
- Communications
- Verification Tests
- Removal & Installation
- Wiring Diagrams
- Body Control Modules
- Door Locks
- Body, Cab Control Systems
- Brakes
- Anti-Lock Brakes
- Anti-Lock Brake System - TEVES Mark IVG
- Description
- Operation
- Bleeding Brake System
- Diagnosis & Testing
- Connector Terminal Identification
- Connector Circuit Identification
- Diagnostic Tests
- Notes
- Test 1A: Checking Abs System For Diagnostic Trouble Codes
- Test 2A: Amber Abs Warning Light Circuit
- Test 3A: Diagnostic Compare
- Test 4A: Inlet Valve Circuits
- Test 4B: Left Front Inlet Valve
- Test 4C: Right Front Inlet Valve
- Test 4D: Rear Inlet Valve
- Test 5A: Outlet Valve Circuits
- Test 5B: Left Front Outlet Valve
- Test 5C: Right Front Outlet Valve
- Test 5D: Rear Outlet Valve
- Test 6A: Wheel Speed Sensor (WSS) Circuits
- Test 6B: Left Front Sensor Circuit Failure
- Test 6C: Left Rear Sensor Circuit Failure
- Test 6D: Right Front Sensor Circuit Failure
- Test 6E: Right Rear Sensor Circuit Failure
- Test 7A: Left Front Sensor Continuity Check
- Test 8A: Left Rear Sensor Continuity Check
- Test 9A: Right Front Sensor Continuity Check
- Test 10A: Right Rear Sensor Continuity Check
- Test 11A: Left Front Sensor Signal Missing/Comparison
- Test 12A: Left Rear Sensor Signal Missing/Comparison
- Test 13A: Right Front Sensor Signal Missing/Comparison
- Test 14A: Right Rear Sensor Signal Missing/Comparison
- Test 15A: Pump/Motor Circuit Not Working Properly
- Test 16A: Pump Motor Not Running
- Test 17A: System UNDERVOLTAGE
- Test 18A: System OVERVOLTAGE
- Test 19A: Valve Block Feed Failure
- Test 20A: Valve Power Feed Circuit
- Test 21A: "G" Switch Not Processable
- Test 22A: No Response Message
- Test 23A: Brake Switch Circuit
- Test 24A: Red Brake Warning Light Circuit
- Test VER-1A: System Verification Test
- Removal & Installation
- Adjustments
- Torque Specifications
- Wiring Diagrams
- Anti-Lock Brake System - Wiring Diagrams
- Anti-Lock Brake System - TEVES Mark IVG
- Mechanical - Hydraulic
- Parking Brake System
- Traction Control
- Anti-Lock Brake System - TEVES Mark IVG
- Description
- Operation
- Bleeding Brake System
- Diagnosis & Testing
- Connector Terminal Identification
- Connector Circuit Identification
- Diagnostic Tests
- Notes
- Test 1A: Checking Abs System For Diagnostic Trouble Codes
- Test 2A: Amber Abs Warning Light Circuit
- Test 3A: Diagnostic Compare
- Test 4A: Inlet Valve Circuits
- Test 4B: Left Front Inlet Valve
- Test 4C: Right Front Inlet Valve
- Test 4D: Rear Inlet Valve
- Test 5A: Outlet Valve Circuits
- Test 5B: Left Front Outlet Valve
- Test 5C: Right Front Outlet Valve
- Test 5D: Rear Outlet Valve
- Test 6A: Wheel Speed Sensor (WSS) Circuits
- Test 6B: Left Front Sensor Circuit Failure
- Test 6C: Left Rear Sensor Circuit Failure
- Test 6D: Right Front Sensor Circuit Failure
- Test 6E: Right Rear Sensor Circuit Failure
- Test 7A: Left Front Sensor Continuity Check
- Test 8A: Left Rear Sensor Continuity Check
- Test 9A: Right Front Sensor Continuity Check
- Test 10A: Right Rear Sensor Continuity Check
- Test 11A: Left Front Sensor Signal Missing/Comparison
- Test 12A: Left Rear Sensor Signal Missing/Comparison
- Test 13A: Right Front Sensor Signal Missing/Comparison
- Test 14A: Right Rear Sensor Signal Missing/Comparison
- Test 15A: Pump/Motor Circuit Not Working Properly
- Test 16A: Pump Motor Not Running
- Test 17A: System UNDERVOLTAGE
- Test 18A: System OVERVOLTAGE
- Test 19A: Valve Block Feed Failure
- Test 20A: Valve Power Feed Circuit
- Test 21A: "G" Switch Not Processable
- Test 22A: No Response Message
- Test 23A: Brake Switch Circuit
- Test 24A: Red Brake Warning Light Circuit
- Test VER-1A: System Verification Test
- Removal & Installation
- Adjustments
- Torque Specifications
- Wiring Diagrams
- Anti-Lock Brake System - Wiring Diagrams
- Anti-Lock Brake System - TEVES Mark IVG
- Anti-Lock Brakes
- Drivelines & Axles
- Front Axle Shafts
- Differentials & Drive Axles
- Differentials - TRAC-LOK
- Drive Axle - 7 1/8" & 7 1/3" & 7 9/16" & 7 4/5" & 8 1/4" & 8 1/2 & 8 9/10" Ring Gears
- Front Axle Shafts
- Driveshaft & Universal Joints
- Wheel Hubs
- Electrical
- Charging Systems
- Charging System - Generators & Regulators
- Identification
- Description
- Operation
- Adjustments
- Trouble Shooting
- On-Vehicle Testing
- Self-Diagnostic System
- Diagnostic Tests
- System Tests
- Verification Tests
- Bench Testing
- Torque Specifications
- Wiring Diagrams
- Charging System - Generators & Regulators
- Component Locations
- Fuses & Circuit Breakers
- Gauges
- Instrument Panel
- Description
- System Tests
- Component Tests
- Removal & Installation
- Wiring Diagrams
- Instrument Panel
- Starter
- Starting System
- Description
- Adjustments
- Trouble Shooting
- On-Vehicle Testing
- Bench Testing
- Removal & Installation
- Overhaul
- Starter Specifications
- Torque Specifications
- Wiring Diagrams
- Starting System
- Wiring Diagrams
- System Wiring Diagrams
- Using lemon2025'S Wiring Diagrams
- Air Conditioning
- Anti-Lock Brakes
- Anti-Theft
- Computer Data Lines
- Cruise Control
- Defoggers
- Engine Performance
- Exterior Lights
- Ground Distribution
- Headlights
- Horn
- Instrument Cluster
- Interior Lights
- Power Distribution
- Radio
- Shift Interlock
- Starting/Charging
- Supplemental Restraints
- Transmission
- Warning Systems
- Wiper/Washer
- Using lemon2025'S System Wiring Diagrams
- System Wiring Diagrams
- Charging Systems
- Engine Mechanical
- Accessory Drive Belts
- Auxiliary Emission Control Systems
- Emission Control System Visual Inspection Procedures - General Information
- * Please Read This First *
- Emission Control Labels
- Emission Control Visual Inspection
- Notes
- Positive Crankcase Ventilation (PCV)
- Thermostatic Air Cleaner (TAC)
- Fuel Evaporative System (EVAP)
- Catalytic Converters
- Fill Pipe RESTRICTOR (Fr)
- Exhaust Gas RECIRCULATION (EGR) System
- Spark Controls (SPK)
- Air Injection System (AIS)
- Oxygen Sensor (O2)
- Computerized Engine Controls (CEC)
- Early Fuel Evaporation (EFE)
- Emission Maintenance Reminder Light (EMR) (If Equipped)
- Malfunction Indicator Light (Mil)
- Emission Control System Visual Inspection Procedures - General Information
- Engine Cooling Fans
- Cooling System (Mechanical)
- Mechanical
- 2.5L Engine - VIN P
- Engine Identification
- Adjustments
- Trouble Shooting
- Removal & Installation
- Overhaul
- Engine Oiling
- Torque Specifications
- Engine Specifications
- General Specifications
- Crankshaft, Main Bearings & Connecting Rod Bearings Specifications
- Connecting Rods Specifications
- Pistons, Piston Pins & Piston Rings Specifications
- Cylinder Block Specifications
- Engine Valves & Valve Springs Specifications
- Cylinder Head Specifications
- Camshaft Specifications
- Valve Lifters Specifications
- 2.5L Engine - VIN P
- Starter
- Starting System
- Description
- Adjustments
- Trouble Shooting
- On-Vehicle Testing
- Bench Testing
- Removal & Installation
- Overhaul
- Starter Specifications
- Torque Specifications
- Wiring Diagrams
- Starting System
- Engine Performance
- Engine Controls - On-Vehicle Adjustments
- Application
- Emissions
- Emission Applications
- Emission Control Abbreviations
- State Emission Standards - Diesel
- State Emission Standards - Gas
- ALASKA
- ARIZONA
- CALIFORNIA
- Colorado
- CONNECTICUT
- DELAWARE
- District Of COLUMBIA
- GEORGIA
- IDAHO
- ILLINOIS
- INDIANA
- KENTUCKY
- MARYLAND
- MASSACHUSETTS
- MISSOURI
- NEVADA
- New Jersey
- New MEXICO
- New YORK
- North CAROLINA
- OHIO
- OREGON
- PENNSYLVANIA
- RHODE Island
- TENNESSEE
- TEXAS
- UTAH
- VIRGINIA
- WASHINGTON
- WISCONSIN
- U. S. EPA ASM2525 & ASM5015 Start-Up Emission Standards
- U. S. EPA Revised Final ASM Emission Standards (ASM5015 & ASM2525)
- U.S. EPA Im240 Emission Standards
- Mode 6 - CHRYSLER
- Introduction
- 1996
- 1997-1998
- 1999
- 2000
- 2001
- 2002
- 2003-2004
- 2005
- 2006
- 2007
- 2007-09 Diesel Engines
- 2008
- 2008-10 Viper
- 2009-10 Pt Cruiser
- 2009 - All Vehicles With V6 Or V8 Engines
- 2009 Vehicles With The "World I4" 4 Cylinder Engine
- 2010 Vehicles
- 2011 Vehicles
- 2012 Vehicles
- Remove, Overhaul & Install
- Engine Controls - Removal, Overhaul & Installation
- Introduction
- Computerized Engine Controls
- Engine Sensors & Switches
- Battery Temperature Sensor
- Brake Switch
- Camshaft Position (CMP) Sensor
- Crankshaft Position (CKP) Sensor
- Downstream Heated Oxygen Sensor
- Engine Coolant Temperature Sensor
- Fuel Level Sensor
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (Map) Sensor
- Oil Pressure Sensor
- Output Shaft Speed (OSS) Sensor
- Park/Neutral (P/N) Switch
- Power Steering Pressure (PSP) Switch
- Throttle Position (TP) Sensor
- Transmission Governor Pressure Sensor
- Transmission Overdrive Switch
- Transmission Speed Sensor
- Transmission Temperature Sensor
- Upstream Oxygen Sensor
- Motors, Relays & Solenoids
- Ignition System
- Fuel Systems
- Torque Specifications
- Engine Controls - Removal, Overhaul & Installation
- Specifications
- System
- Engine Controls - Basic Diagnostic Procedures
- Engine Controls - Self-Diagnostics - Wrangler
- Introduction
- Self-Diagnostic System
- Fuel System Pressure Release
- Powertrain Control Module Location
- Programming
- Scan Tool Error Messages
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0107: Map Sensor Voltage Too Low DTC P1296: No 5 Volts To Map Sensor
- DTC P0108: Map Sensor Voltage Too High
- DTC P0112: Intake Air Temp Sensor Voltage Low
- DTC P0113: Intake Air Temperature Sensor Voltage High
- DTC P0117: ECT Sensor Voltage Too Low
- DTC P0118: ECT Sensor Voltage Too High
- DTC P0121: TPS Voltage Does Not Agree With Map
- DTC P0122: Throttle Position Sensor Voltage Low
- DTC P0123: Throttle Position Sensor Voltage High
- DTC P0125: Closed Loop Temp Not Reached
- DTC P0130: 1/1 O2 Sensor Heater Circuit Malfunction (4.0L With CALIF. Emissions)
- DTC P0131: 1/1 O2S Voltage Shorted To Ground
- DTC P0132: 1/1 O2 Sensor Shorted To Voltage
- DTC P0133: 1/1 O2 Sensor Slow Response
- DTC P0135: 1/1 O2 Sensor Heater Failure
- DTC P0136: 1/2 O2 Sensor Heater Circuit Malfunction (4.0L With CALIF. Emissions)
- DTC P0137: 1/2 O2S Volts Shorted To Ground
- DTC P0138: 1/2 O2 Sensor Shorted To Voltage
- DTC P0139: 1/2 O2 Sensor Slow Response
- DTC P0141: 1/2 O2 Sensor Heater Failure
- DTC P0151: 2/1 O2 Sensor Shorted To Ground (4.0L With CALIF. Emissions)
- DTC P0152: 2/1 O2 Sensor Shorted To Voltage (4.0L With CALIF. Emissions)
- DTC P0153: 2/1 O2 Sensor Slow Response (4.0L With CALIF. Emissions)
- DTC P0155: 2/1 O2 Sensor Heater Failure (4.0L With CALIF. Emissions)
- DTC P0157: 2/2 O2 Sensor Shorted To Ground (4.0L With CALIF. Emissions)
- DTC P0158: 2/2 O2 Sensor Shorted To Voltage (4.0L With CALIF. Emissions)
- DTC P0159: 2/2 O2 Sensor Slow Response (4.0L With CALIF. Emissions)
- DTC P0161: 2/2 O2 Sensor Heater Malfunction (4.0L With CALIF. Emissions)
- DTC P0171: 1/1 Fuel System Lean
- DTC P0172: 1/1 Fuel System Rich
- DTC P0174: 2/1 Fuel System Lean (4.0L With CALIF. Emissions)
- DTC P0175: 2/1 Fuel System Rich (4.0L With CALIF. Emissions)
- DTC P0201: Injector #1 Control Circuit
- DTC P0202: Injector #2 Control Circuit
- DTC P0203: Injector #3 Control Circuit
- DTC P0204: Injector #4 Control Circuit
- DTC P0205: Injector #5 Control Circuit (4.0L)
- DTC P0206: Injector #6 Control Circuit (4.0L)
- DTC P0300: Multiple Cylinder Misfire
- DTC P0301-P0306: Cylinder Misfire
- DTC P0320: No Crank Reference Signal At Pcm
- DTC P0340: No Cam Signal At Pcm
- DTC P0351: Ignition Coil #1 Primary Circuit (2.5L)
- DTC P0351: Ignition Coil #1 Primary Circuit (4.0L)
- DTC P0352: Ignition Coil #2 Primary Circuit (4.0L)
- DTC P0353: Ignition Coil #3 Primary Circuit (4.0L)
- DTC P0420: 1/1 Catalytic Converter Efficiency
- DTC P0432: 2/1 Catalytic Converter Efficiency (4.0L With CALIF. Emissions)
- DTC P0441: EVAP Purge Flow Monitor Failure
- DTC P0442: EVAP Leak Monitor Medium (.040") Leak Detected DTC P0455: EVAP Leak Monitor Large Leak Detected DTC P0456: EVAP Leak Monitor Small (.020") Leak Detected
- DTC P0443: EVAP Purge Solenoid Circuit
- DTC P0460: Fuel Level Unit No Change Over Miles
- DTC P0462: Fuel Level Sending Unit Volts Too Low
- DTC P0463: Fuel Level Sending Unit Volts Too High
- DTC P0500: No Vehicle Speed Sensor Signal
- DTC P0505: Idle Air Control Motor Circuits
- DTC P0522: Oil Pressure Sensor Volts Low
- DTC P0523: Oil Pressure Sensor Volts High
- DTC P0551: Power Steering Switch Failure (2.5L)
- DTC P0600: Pcm Failure SPI Communications
- DTC P0601: Internal Controller Failure
- DTC P0645: A/C Clutch Relay Circuit
- DTC P1195: Slow 1/1 O2S During Catalyst Monitor
- DTC P1196: 2/1 O2 Sensor Slow During Catalyst Monitor (4.0L With CALIF. Emissions)
- DTC P1197: Slow 1/2 O2S During Catalyst Monitor
- DTC P1281: Engine Is Cold Too Long
- DTC P1282: Fuel Pump Relay Control Circuit
- DTC P1294: Target Idle Not Reached
- DTC P1297: No Change In Map From Start To Run
- DTC P1388: Auto Shutdown Relay Control Circuit
- DTC P1389: No ASD Relay Output Voltage At Pcm
- DTC P1391: Intermittent Loss Of CMP Or CKP
- DTC P1398: Misfire Adaptive Numerator At Limit
- DTC P1486: EVAP Leak Monitor Pinched Hose Found
- DTC P1492: Ambient/Bat Temperature Sensor Voltage Too High DTC P1493: Ambient/Bat Temperature Sensor Voltage Too Low
- DTC P1494: Leak Detection Pump SW Or Mechanical Fault
- DTC P1495: Leak Detection Pump Solenoid Circuit
- DTC P1687: No Cluster Bus Message
- DTC P1696: Pcm Failure EEPROM Write Denied
- DTC P1899: Park/Neutral Switch Stuck In Park Or In Gear (A/T)
- Verification Tests
- Engine Controls - System & Component Testing
- Introduction
- Programming
- Computerized Engine Controls
- Engine Sensors & Switches
- Camshaft Position Sensor
- Checking Brake Switch
- Checking Engine Coolant Temperature Sensor Calibration
- Checking Intake Air Temperature Sensor
- Checking Map Sensor Calibration
- Checking Oxygen Sensor Heater
- Checking Oxygen Sensor Switching
- Checking Park/Neutral Position Switch (A/T)
- Checking Throttle Position Sensor Calibration
- Crankshaft Position Sensor
- Leak Detection Pump Switch
- Power Steering Switch (2.5L)
- Vehicle Speed Sensor
- Motors, Relays & Solenoids
- Fuel Systems
- Idle Control Systems
- Ignition Systems
- Emission Systems & Sub-Systems
- Miscellaneous Controls
- Verification Tests
- Engine Controls - Tests W/O Codes
- O2 Sensor Location & Identification
- Testing & Diagnosis
- Engine Controls - Basic Diagnostic Procedures
- Engine Controls - Self-Diagnostics - Wrangler
- Introduction
- Self-Diagnostic System
- Fuel System Pressure Release
- Powertrain Control Module Location
- Programming
- Scan Tool Error Messages
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0107: Map Sensor Voltage Too Low DTC P1296: No 5 Volts To Map Sensor
- DTC P0108: Map Sensor Voltage Too High
- DTC P0112: Intake Air Temp Sensor Voltage Low
- DTC P0113: Intake Air Temperature Sensor Voltage High
- DTC P0117: ECT Sensor Voltage Too Low
- DTC P0118: ECT Sensor Voltage Too High
- DTC P0121: TPS Voltage Does Not Agree With Map
- DTC P0122: Throttle Position Sensor Voltage Low
- DTC P0123: Throttle Position Sensor Voltage High
- DTC P0125: Closed Loop Temp Not Reached
- DTC P0130: 1/1 O2 Sensor Heater Circuit Malfunction (4.0L With CALIF. Emissions)
- DTC P0131: 1/1 O2S Voltage Shorted To Ground
- DTC P0132: 1/1 O2 Sensor Shorted To Voltage
- DTC P0133: 1/1 O2 Sensor Slow Response
- DTC P0135: 1/1 O2 Sensor Heater Failure
- DTC P0136: 1/2 O2 Sensor Heater Circuit Malfunction (4.0L With CALIF. Emissions)
- DTC P0137: 1/2 O2S Volts Shorted To Ground
- DTC P0138: 1/2 O2 Sensor Shorted To Voltage
- DTC P0139: 1/2 O2 Sensor Slow Response
- DTC P0141: 1/2 O2 Sensor Heater Failure
- DTC P0151: 2/1 O2 Sensor Shorted To Ground (4.0L With CALIF. Emissions)
- DTC P0152: 2/1 O2 Sensor Shorted To Voltage (4.0L With CALIF. Emissions)
- DTC P0153: 2/1 O2 Sensor Slow Response (4.0L With CALIF. Emissions)
- DTC P0155: 2/1 O2 Sensor Heater Failure (4.0L With CALIF. Emissions)
- DTC P0157: 2/2 O2 Sensor Shorted To Ground (4.0L With CALIF. Emissions)
- DTC P0158: 2/2 O2 Sensor Shorted To Voltage (4.0L With CALIF. Emissions)
- DTC P0159: 2/2 O2 Sensor Slow Response (4.0L With CALIF. Emissions)
- DTC P0161: 2/2 O2 Sensor Heater Malfunction (4.0L With CALIF. Emissions)
- DTC P0171: 1/1 Fuel System Lean
- DTC P0172: 1/1 Fuel System Rich
- DTC P0174: 2/1 Fuel System Lean (4.0L With CALIF. Emissions)
- DTC P0175: 2/1 Fuel System Rich (4.0L With CALIF. Emissions)
- DTC P0201: Injector #1 Control Circuit
- DTC P0202: Injector #2 Control Circuit
- DTC P0203: Injector #3 Control Circuit
- DTC P0204: Injector #4 Control Circuit
- DTC P0205: Injector #5 Control Circuit (4.0L)
- DTC P0206: Injector #6 Control Circuit (4.0L)
- DTC P0300: Multiple Cylinder Misfire
- DTC P0301-P0306: Cylinder Misfire
- DTC P0320: No Crank Reference Signal At Pcm
- DTC P0340: No Cam Signal At Pcm
- DTC P0351: Ignition Coil #1 Primary Circuit (2.5L)
- DTC P0351: Ignition Coil #1 Primary Circuit (4.0L)
- DTC P0352: Ignition Coil #2 Primary Circuit (4.0L)
- DTC P0353: Ignition Coil #3 Primary Circuit (4.0L)
- DTC P0420: 1/1 Catalytic Converter Efficiency
- DTC P0432: 2/1 Catalytic Converter Efficiency (4.0L With CALIF. Emissions)
- DTC P0441: EVAP Purge Flow Monitor Failure
- DTC P0442: EVAP Leak Monitor Medium (.040") Leak Detected DTC P0455: EVAP Leak Monitor Large Leak Detected DTC P0456: EVAP Leak Monitor Small (.020") Leak Detected
- DTC P0443: EVAP Purge Solenoid Circuit
- DTC P0460: Fuel Level Unit No Change Over Miles
- DTC P0462: Fuel Level Sending Unit Volts Too Low
- DTC P0463: Fuel Level Sending Unit Volts Too High
- DTC P0500: No Vehicle Speed Sensor Signal
- DTC P0505: Idle Air Control Motor Circuits
- DTC P0522: Oil Pressure Sensor Volts Low
- DTC P0523: Oil Pressure Sensor Volts High
- DTC P0551: Power Steering Switch Failure (2.5L)
- DTC P0600: Pcm Failure SPI Communications
- DTC P0601: Internal Controller Failure
- DTC P0645: A/C Clutch Relay Circuit
- DTC P1195: Slow 1/1 O2S During Catalyst Monitor
- DTC P1196: 2/1 O2 Sensor Slow During Catalyst Monitor (4.0L With CALIF. Emissions)
- DTC P1197: Slow 1/2 O2S During Catalyst Monitor
- DTC P1281: Engine Is Cold Too Long
- DTC P1282: Fuel Pump Relay Control Circuit
- DTC P1294: Target Idle Not Reached
- DTC P1297: No Change In Map From Start To Run
- DTC P1388: Auto Shutdown Relay Control Circuit
- DTC P1389: No ASD Relay Output Voltage At Pcm
- DTC P1391: Intermittent Loss Of CMP Or CKP
- DTC P1398: Misfire Adaptive Numerator At Limit
- DTC P1486: EVAP Leak Monitor Pinched Hose Found
- DTC P1492: Ambient/Bat Temperature Sensor Voltage Too High DTC P1493: Ambient/Bat Temperature Sensor Voltage Too Low
- DTC P1494: Leak Detection Pump SW Or Mechanical Fault
- DTC P1495: Leak Detection Pump Solenoid Circuit
- DTC P1687: No Cluster Bus Message
- DTC P1696: Pcm Failure EEPROM Write Denied
- DTC P1899: Park/Neutral Switch Stuck In Park Or In Gear (A/T)
- Verification Tests
- Engine Controls - System & Component Testing
- Introduction
- Programming
- Computerized Engine Controls
- Engine Sensors & Switches
- Camshaft Position Sensor
- Checking Brake Switch
- Checking Engine Coolant Temperature Sensor Calibration
- Checking Intake Air Temperature Sensor
- Checking Map Sensor Calibration
- Checking Oxygen Sensor Heater
- Checking Oxygen Sensor Switching
- Checking Park/Neutral Position Switch (A/T)
- Checking Throttle Position Sensor Calibration
- Crankshaft Position Sensor
- Leak Detection Pump Switch
- Power Steering Switch (2.5L)
- Vehicle Speed Sensor
- Motors, Relays & Solenoids
- Fuel Systems
- Idle Control Systems
- Ignition Systems
- Emission Systems & Sub-Systems
- Miscellaneous Controls
- Verification Tests
- Engine Controls - Tests W/O Codes
- O2 Sensor Location & Identification
- Theory and Operation
- Engine Controls - Theory & Operation
- Introduction
- Computerized Engine Controls
- Powertrain Control Module (Pcm)
- Pcm Inputs
- Pcm Outputs
- Input Signals
- Notes
- Auto Shutdown (ASD) Relay
- Battery Voltage
- Brake Switch
- Camshaft Position Sensor (2.5L)
- Camshaft Position Sensor (4.0L)
- Camshaft Position Sensor (4.7L)
- Crankshaft Position (CKP) Sensor
- 5-Volt Supply
- Fuel Level Sensor
- Engine Coolant Temperature (ECT) Sensor
- Extended Idle Switch
- Oxygen (O2) Sensor
- Ignition Circuit Sense
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Oil Pressure Sensor
- Power Steering Pressure Switch (PSPS)
- Throttle Position (TP) Sensor
- Vehicle Speed Sensor (VSS)
- Output Signals
- Notes
- A/C Compressor Clutch Relay
- Automatic Shutdown (ASD) Relay
- Cruise Control Servo
- Evaporative (EVAP) Emission System
- Fuel Injectors
- Fuel Pump Relay
- Generator Field
- Generator Light
- Idle Air Control (IAC) Motor
- Ignition Coil
- Injection Timing
- Malfunction Indicator Light (MIL)
- Radiator Cooling Fan Relay
- Serial Communication Interface (SCI) Transmit
- Upshift Indicator Light (M/T)
- Fuel System
- Ignition System
- Hall Effect System
- Notes
- Engine Coolant Temperature (ECT) Sensor
- Crankshaft Position (CKP) Sensor
- Distributor (Cherokee & Wrangler)
- Ignition Coil (Cherokee & Wrangler)
- Ignition Coils (Grand Cherokee)
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Powertrain Control Module (PCM)
- Throttle Position (TP) Sensor
- Hall Effect System
- Emission Systems & Sub-Systems
- Self-Diagnostic System
- Miscellaneous Controls
- Engine Controls - Theory & Operation
- Vacuum Diagrams
- General Information
- Abbreviations
- Basic Trouble Shooting
- Basic Trouble Shooting - General Information
- Commonly Used Abbreviations - General Information
- Emission Control Abbreviations
- Engine Performance - Trouble Shooting - General Information
- Brakes
- Anti-Lock Brake Safety Precautions - General Information
- Map - Brake Systems
- Brake Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Accelerometers
- Accumulators
- Anchor Pins
- Anti-Lock Brake Control Assembly(Module)
- Anti-Lock Brake Controller
- Anti-Lock Brake Systems
- Axle Seal
- Backing Plates
- Bleeder Screw
- Brake Abs Active Light (Blue)
- Brake Fluid
- Brake Friction Material
- Brake On - Off Switch
- Brake Pads
- Brake Pedals
- Brake Shoe Hardware
- Brake Shoes
- Brake Stoplight Switches
- Brake Warning Light (Amber)
- Brake Warning Light (Red)
- Bulb Sockets
- Bulbs And LEDS
- Caliper Hardware
- Caliper Mounting Pin
- Caliper Piston
- Caliper Shim
- Caliper Slider Pin (Bolt) Dust Boot
- Caliper Slider Pin (Bolt)
- Calipers
- Combination Valve
- Controllers
- Digital Ratio Axle Controllers And Buffers (Drab And Dram)
- Disable Switches
- Drums
- Electrical Brake Pumps
- Electrical Park Motor
- Electrical Pumps And Motors
- Electro-Magnetic Interference
- Electronic Brake Control Modulator
- Electronic Brake Distribution
- Electronic Brake Traction Control Module
- Electronic Controllers
- Electronic Traction Control
- External Brake Cable
- Flow Control Valve
- Fluid Level Sensor Switches
- Fluid
- Four Wheel Drive Switches
- Friction Material
- G Sensors
- Gaskets
- Gravitational Switches
- Grease Seal
- Height Sensing Proportioning Valve
- High Pressure Accumulator
- Hoses
- Hub
- Hydraulic Control Unit
- Hydraulic Modulators
- Hydro-Boosters
- Hydro-Electric Boosters (POWERMASTER)
- Ignition Disable Switches
- Lamp Driver Relay
- Lateral Acceleration Switches
- LEDS
- Lenses
- Low Pressure Accumulator
- Lug Nut
- Master Cylinder Cover Gasket
- Master Cylinders
- Modulators
- Motor Pack
- Motors
- Pads
- Parking Brake Cable
- Parking Brake Mechanism
- Parking Brake Shoes
- Parking Brake Switches
- Parking Brake Systems
- Pedal Travel Switches
- Pedals
- Power Distribution Center
- POWERMASTER
- Pressure Differential Switches
- Pressure Switches
- Pressure Transducers
- Proportioning Valve
- Pumps
- Relays
- RELUCTOR (Speed) Ring
- Rotors
- Self-Adjusting Systems
- Shoe Hardware
- Shoes
- Sockets
- Speed Sensor (RELUCTOR) Ring
- Speed Sensors (Electronic Wheel And Vehicle)
- Star Wheel
- Steel Brake Lines
- Stoplight Switches
- Stroke Sensor
- Switches
- Tires
- Tone Ring
- Toothed Rings (Tone Wheel)
- Traction Control System (TCS)
- Transfer Tubes
- Vacuum Boosters
- Vacuum Hoses
- Valves
- Wear Indicator
- Wheel Attachment Hardware
- Wheel Bearings, Races And Seals
- Wheel Cylinders
- Wiring Harnesses
- Yaw Rate Sensor
- Brake System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Brake Systems
- Map - Routine Inspection Reference Guide
- Routine Inspection Reference Guide
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Maintenance Overview
- Antifreeze/Coolant
- Visual Inspection
- Radiator Cap Test
- Engine Fan
- Cooling System Power Flush And Refill
- Belts (Except Timing Belts)
- Belt TENSIONER
- Automatic Transmission Fluid
- Automatic Transmission Fluid Exchange & Filter Replacement
- Engine Oil
- Air Filters
- Cabin Air Filter
- Brake Fluid
- Battery
- Battery Cables
- Power Steering
- Power Steering Fluid
- Wiper Blades
- Routine Inspection CHECKSHEET
- Routine Inspection - UICS
- Brake Systems
- Drivetrain And Transmission
- Notes
- Automatic Transmission Fluid
- Clutch Master Cylinders
- Cooler Lines
- Coolers
- Differential Fluid
- Drain Plugs And Gaskets
- Filters And Screens
- Fluids And Lubricants
- Hoses, Lines, And Tubes
- Hydraulic Fluid
- Lubricants
- Manual Transmission Fluid
- Mounts (Engine, Transaxle And Transmission)
- Transfer Case Fluid
- Vacuum Hoses
- Electrical Systems
- Engine Performance And Maintenance
- Notes
- Accessory Belts
- Air Filter Elements
- Air Filter Gaskets
- Air Filter Housings And Gaskets
- Air Pump Belts
- Batteries
- Battery Connectors
- Belt Idler Assemblies (Accessory And Cam Belts)
- Belt TENSIONERS (Accessory And Cam Belt)
- Chemical Engine DECARBONIZATION
- Combustion Chamber Cleaning
- Coolant Recovery Tanks
- Coolant
- Distributor Caps
- Distributor Rotors
- Engine Cooling Systems
- Engine DECARBONIZATION
- Engine Oil Drain Plugs And Gaskets
- Engine Oil Filters And Canisters
- Engine Oil
- Fuel Filters
- Fuel Injector Cleaning
- Fuel Injectors
- Fuel System Cleaning Service
- Hose Clamps
- Hose Connectors
- Hose Couplers
- Hoses And Tubes (Fuel Lines, Radiator, Vacuum, By-Pass, Heater, Recovery Tank And Oil Coolers)
- Ignition Wires (Secondary)
- Intake Cleaning
- O2 Sensors
- PCV Breather Elements
- PCV Valves
- Radiator Caps And Pressurized Expansion Tank Caps
- Spark Plugs
- Thermostats And Housings
- Throttle Body Cleaning
- Timing Belts
- Vacuum Hoses, Tubes And Connections (Non-Metallic)
- Exhaust Systems
- Heating, Ventilation And Air Conditioning Systems
- Steering And Suspension, Wheel Alignment, Wheels And Tires
- Wheel & Tire Supplement
- Reason Code Explanation
- Automotive Terminology & Definitions
- Routine Inspection Reference Guide
- Check Lists
- Computer Relearn Procedures
- OBD-II Drive Cycles
- Driveline/Axles
- Drive Axle Noise Diagnosis - General Information
- Gear Tooth Contact Patterns - General Information
- Map - Drive Train & Transmission
- Drive Train & Transmission Systems
- Drivetrain And Transmission
- Notes
- Actuators (Electrical)
- Actuators (Vacuum)
- Automatic Transmission / Transaxle Assemblies/CVTS
- Automatic Transmission Fluid
- Axles
- Bearings And Races
- Bell Cranks
- Bell Housings
- Bushings (External)
- Cables (Speedometer)
- Cables (TV, Detent And Shift)
- Carrier Bearings
- Clutch Cables And Cable Housings
- Clutch Discs (Manual Transmissions)
- Clutch Forks
- Clutch Linkages (Mechanical)
- Clutch Master Cylinders
- Clutch Pedals
- Clutch Pivots
- Clutch Pressure Plates
- Clutch Release Bearings
- Clutch Slave Cylinders (Concentric)
- Clutch Slave Cylinders (Conventional Or External)
- Companion Flanges
- Connectors
- Cooler Bypass Valves
- Cooler Lines
- Coolers
- CV Joints
- Differential And Final Drive Assemblies
- Differential Fluid
- Dip Stick Tubes
- Dip Sticks (Fluid Level Indicators)
- Dowel Pins, Guides And Pilot Holes
- Drain Plugs And Gaskets
- Drive Shaft Flanges
- Drive Shafts And Half Shafts
- Dust Boots
- Engine Mounts
- Exciter Rings
- Filler Tubes
- Filters And Screens
- Flanges
- Flex Plates
- Fluid Level Indicators
- Fluids And Lubricants
- Flywheels
- Force Motors
- Gaskets
- Guides
- Half Shafts
- Hoses, Lines, And Tubes
- Housings (Bell, Case, Tail(Extension) And Auxiliary)
- Hydraulic Fluid
- Intermediate Shaft Support Bearings
- Key Interlock Systems
- Limited Slips
- Lines
- Linkages (External)
- Locking Hub Assemblies
- Locking Hub Control Knobs
- Lubricants
- Manual Transmission Fluid
- Manual Transmission/Transaxle Assemblies
- Metal Clad Seals
- METALASTIC Joints
- Modulator Pins
- Modulators
- Mounts (Engine, Transaxle And Transmission)
- Odometer Drives (Mechanical)
- Odometer Heads (Mechanical)
- Oil Pans
- Pans
- Pilot Holes
- Pressure Plates
- Pressure Switches
- Races
- Rubber Joints (METALASTIC)
- Screens
- Seals (Metal Clad)
- Seals
- Selector Interlock Systems
- Sensors
- Servos
- Shift Interlock Systems (Selector And Key Interlock Systems)
- Side Covers
- Slip Yokes
- Solenoids
- Speed Sensors (Electronic Wheel And Vehicle)
- Speedometer- Driven Gear Housing
- Speedometer/Odometer Drives (Mechanical)
- Speedometer/Odometer Heads (Mechanical)
- Speedometers/Odometers (Electronic)
- Switches
- Tone Wheels
- Toothed Rings (Tone Wheel)
- Torque Converters
- Transaxle Mounts
- Transducers (Transmission)
- Transfer Case Assemblies
- Transfer Case Fluid
- Transmission Coolers
- Transmission Mounts
- Transmission Pans
- Transmission Range Indicators (PRNDL)
- Tubes
- Universal Joints (CARDAN Or Cross Type)
- Vacuum Controls
- Vacuum Hoses
- Vacuum Motors
- Vacuum-Operated Switches
- Vehicle Speed Sensors
- Vents
- Vibration Dampers
- Wheel Attachment Hardware
- Wheel Speed Sensors
- Wiring Harnesses And Connectors
- Yokes And Slip Yokes
- Reason Code Explanation
- Automotive Terminology & Definitions
- Trouble Shooting - Clutches - General Information
- DTC Index
- Electrical
- Map - Electrical Systems
- Electrical Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Actuator Motors (Electric)
- Actuator Motors (Vacuum)
- Air Bags
- Alternators And Generators
- Amplifiers
- Antennas
- Batteries
- Battery Cables, Wires And Connectors
- Battery Cables
- Battery Trays And Hold Down Hardware
- Battery Wires
- Belts
- Bulb Sockets
- Bulbs, Sealed Beams And LEDS
- Cd Players
- Cigarette Lighter Assemblies
- Circuit Breakers
- Clutch Switches
- Connectors
- Control Modules
- Cruise Control Brake Switches
- Cruise Control Cables
- Cruise Control Clutch Switches
- Cruise Control Linkages And Cables
- Cruise Control Reservoirs
- Cruise Control Tubes
- Cruise Control Vacuum Dump Release Valves
- Cruise Control Vacuum Hoses, Tubes And
- Cruise Control Vehicle Speed Sensors
- Defoggers
- Defrosters
- Delays
- Dimmers
- Electric Heaters
- Equalizers
- Fuse Blocks
- Fuse Boxes And Blocks
- Fuses, Fusible Links And Circuit Breakers
- Fusible Links
- Gauges
- Generators
- Ground Cables And Straps
- Ground Straps
- Headlight Adjusters
- Heating Elements (Defrosters, Defoggers, Electric Heaters And Seats)
- Horns And Sirens
- Ignition Switches
- Indicator Lights
- Keyless Entry Keypads And Transmitters
- Keyless Entry Transmitters
- LEDS
- Lenses
- Microphones
- Mirrors (ELECTROCHROMATIC And Heated)
- Motors
- Neutral Safety Switches
- Odometers, Speedometers And Tachometers (Cable Driven)
- Odometers
- Power Distribution Center
- Pulleys
- Receivers, Amplifiers, Equalizers And Sub-Woofer Volume Controls
- Relay Boxes
- Relays
- Sealed Beams
- Seat Heaters
- Security Alarm Sensors
- Sirens
- Solenoids
- Speakers And Microphones
- Speedometer And Tachometer Linkages And Cables
- Speedometer Cables
- Speedometers
- Starters
- Sub-Woofer Volume Control
- Switches
- Tachometer Cables
- Tachometers
- Tape Players And Cd Players
- TENSIONERS
- Timers
- Transceivers
- Transducers
- Vacuum Accumulators (Reservoirs)
- Voltage Regulators
- Washer Fluid Level Senders
- Washer Pumps
- Wiper Arms And Blades
- Wiper Blades
- Wiper Hoses And Nozzles
- Wiper Linkages
- Wiper Nozzles
- Wiper Pump Reservoirs
- Wiring Harnesses And Connectors
- Battery, Starting & Charging System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Electrical Systems
- Using lemon2025'S System Wiring Diagrams
- Map - Electrical Systems
- Engine
- Engine Overhaul Procedures - General Information
- * Please Read This First *
- Description
- Engine Identification
- Inspection Procedures
- Cleaning Procedures
- Component Cleaning
- Cylinder Head Replacement
- Cylinder Head Overhaul
- Pistons, Connecting Rods & Bearings
- Crankshaft & Main Bearings
- Camshaft
- Timing Chains & Belts
- Timing Gears
- Oil Pump
- Break-In Procedure
- General Cooling System Service - General Information
- Engine Overhaul Procedures - General Information
- Engine Performance
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Engine Performance And Maintenance (Including Exhaust Systems)
- Engine Performance & Maintenance CHECKSHEET
- Engine Performance And Maintenance
- Notes
- Accelerator Pedal Position Sensor
- Accessory Belts
- Accessory Pulleys
- Air Conditioning Cycling Switches
- Air Conditioning Pressure Sensors
- Air Ducts And Tubes
- Air Filter Elements
- Air Filter Gaskets
- Air Filter Housings And Gaskets
- Air Fuel Ratio Sensors
- Air Injection Control Solenoids
- Air Plenums
- Air Pump Belts
- Air Pumps (Electric Driven)
- Air Tubes
- Aspirator, Check And DECEL Valves
- Baffles
- Ballast Primary Supply Resistor Wires
- Ballast Resistors And Primary Supply Resistors
- Barometric Pressure Sensors
- Batteries
- Battery Cables, Wires And Connectors
- Battery Connectors
- Battery Trays And Hold Down Hardware
- Battery Wires
- Belt Idler Assemblies (Accessory And Cam Belts)
- Belt TENSIONERS (Accessory And Cam Belt)
- Belt-Driven Air Pumps
- Boost Control Mechanism
- Camshaft Position Sensors
- Carburetors And Chokes
- Casting Core Plugs And Expansion Plugs
- Charge Air Coolers ""INTERCOOLERS"" (CAC)
- Check Valves
- Chemical Engine DECARBONIZATION
- Chokes
- Clutch Pedal Position Switches
- Cold Start Injectors
- Combustion Chamber Cleaning
- Connectors
- Coolant Recovery Tanks
- Coolant
- Cooling Fan Motor Modules
- Cooling Fan Motor Relays And Modules
- Cooling Fan Motor Resistors
- Cooling Fan Motor Sensors And Switches
- Cooling Fan Motor Switches
- Cooling Fan Motors
- Crankshaft Position Sensors
- Cylinder Deactivation Solenoid
- Cylinder Head Assemblies
- DECEL Valves
- Deflectors
- Dip Stick Tubes
- Dip Sticks And Tubes
- Distributor Advances And Retarders (Mechanical And Vacuum)
- Distributor Boots And Shields
- Distributor Caps
- Distributor Retarders (Mechanical And Vacuum)
- Distributor Rotors
- Distributor Shields
- Distributors
- Early Fuel Evaporation Valves (Heat Riser Assemblies)
- EGR Coolers
- EGR Exhaust Manifold Passages
- EGR Intake And Exhaust Manifold Passages
- EGR Plates And Coolers
- Electronic Spark Control Modules
- Electronic Transmission Control Devices
- Electronic Transmission Feedback Devices
- Engine Coolant Temperature Sensors
- Engine Cooling Systems
- Engine Covers (Oil Pan, Valve Cover, Timing Cover)
- Engine DECARBONIZATION
- Engine Oil Canisters
- Engine Oil Coolers (External)
- Engine Oil Drain Plugs And Gaskets
- Engine Oil Filters And Canisters
- Engine Oil Gaskets
- Engine Oil Pressure Gauges (Mechanical)
- Engine Oil
- Evaporative Emissions (EVAP) Canister Filters
- Evaporative Emissions (EVAP) Canister Purge Devices
- Evaporative Emissions (EVAP) Canisters
- Evaporative Emissions (EVAP) Feedback Devices
- Exhaust Gas RECIRCULATION Devices
- Exhaust Gas RECIRCULATION Feedback Devices
- Expansion Plugs
- Fan Control Sensor
- Fuel Accumulators And Dampers
- Fuel And Cold Start Injectors
- Fuel Caps
- Fuel Dampers
- Fuel Delivery Check Valves
- Fuel Distributors (BOSCH Cis)
- Fuel Filler Necks And RESTRICTORS
- Fuel Filters
- Fuel Injector Cleaning
- Fuel Injectors
- Fuel Level Senders
- Fuel Pressure Regulators
- Fuel Pumps (In-Tank, External, Electrical Or Mechanical)
- Fuel Rails
- Fuel RESTRICTORS
- Fuel System Cleaning Service
- Fuel Tanks
- Fuel
- Gaskets
- Grommets (Valve Cover)
- Harmonic Dampers
- Heater Control Valves
- Heater Cores
- Hose Clamps
- Hose Connectors
- Hose Couplers
- Hoses And Tube Couplers, Connectors And Clamps
- Hoses And Tubes (Fuel Lines, Radiator, Vacuum, By-Pass, Heater, Recovery Tank And Oil Coolers)
- Housings
- Idle Air Controls
- Idle Speed Control Actuators
- Ignition Boots
- Ignition Coil Towers
- Ignition Coils
- Ignition Control Modules (ICM)
- Ignition Switches
- Ignition Terminals
- Ignition Wires (Secondary)
- Inertia Fuel Shut-Off Switches
- Intake Air Temperature Sensors
- Intake Cleaning
- Intake Manifolds
- In-Tank Fuel Strainers
- INTERCOOLERS
- Knock Sensors
- Liquid Vapor Separators
- Long Block Assemblies
- Manifold Absolute Pressure (Map) Sensors
- Mass Air Flow (MAF) Sensors
- Metal Air Manifolds And Pipes
- Metal Air Pipes
- Mix Control Solenoids
- Motor Mounts
- O2 Sensors
- Oil Pans
- Oil Pressure Sending Units
- Oil Pump Pick-Up Screens
- Oil Pumps
- O-Rings, Gaskets, Seals And Spring Locks
- Park Neutral Position Switches
- PCV Breather Elements
- PCV Orifices
- PCV Valves
- Pick-Up Assemblies (Includes Magnetic, Hall Effect And Optical)
- Power Steering Pressure Sensors
- Powertrain Control Modules (Pcm) And Prom
- Powertrain Control Prom
- Pressurized Expansion Tank Caps
- Radiator / Cooling Fan Blades
- Radiator / Cooling Fan Clutches
- Radiator Caps And Pressurized Expansion Tank Caps
- Radiators
- Roll Over Valves
- Sealing Compounds
- Seals
- Secondary Air Injection System Management Devices
- Sensors
- Short Block Assemblies
- Shrouds, Baffles And Deflectors
- Spark Plugs
- Spring Locks
- Super Chargers
- Switches
- Thermal Vacuum Valves
- Thermostatic Air Door Assemblies
- Thermostats And Housings
- Throttle Bodies
- Throttle Body Cleaning
- Throttle Cables
- Throttle Linkages And Cables
- Throttle Position Sensors
- Throttle Position Switches
- Timing Belt Sprockets
- Timing Belts
- Timing Covers
- Torque Struts
- Transmission Range Switches
- Tube Clamps
- Tube Connectors
- Tube Couplers
- Tubes
- Turbo Chargers
- Vacuum Connections
- Vacuum Hoses, Tubes And Connections (Non-Metallic)
- Vacuum Regulator Solenoids
- Vacuum Tubes
- Valve Covers
- Vehicle Speed Senors
- Volume Air Flow Sensors
- Waste Gate And Boost Control Mechanisms
- Waste Gate Control Solenoids
- Water Pumps (Electric)
- Water Pumps (Non-Electric)
- Wiring Harnesses And Connectors
- Reason Code Explanation
- Automotive Terminology & Definitions
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- ALASKA
- ARIZONA
- CALIFORNIA
- Colorado
- CONNECTICUT
- DELAWARE
- District Of COLUMBIA
- GEORGIA
- IDAHO
- ILLINOIS
- INDIANA
- KENTUCKY
- MARYLAND
- MASSACHUSETTS
- MISSOURI
- NEVADA
- New Jersey
- New MEXICO
- New YORK
- North CAROLINA
- OHIO
- OREGON
- PENNSYLVANIA
- RHODE Island
- TENNESSEE
- TEXAS
- UTAH
- VIRGINIA
- WASHINGTON
- WISCONSIN
- U. S. EPA ASM2525 & ASM5015 Start-Up Emission Standards
- U. S. EPA Revised Final ASM Emission Standards (ASM5015 & ASM2525)
- U.S. EPA Im240 Emission Standards
- Waveforms - Injector Pattern Tutorial - General Information
- * Please Read This First *
- Purpose Of This Article
- Is A Lab Scope Necessary?
- The Two Types Of Injector Drivers
- The Two Ways Injector Circuits Are Wired
- Interpreting Injector Waveforms
- Current Waveform Samples
- Notes
- Example #1 - Voltage Controlled Driver
- Example #2 - Voltage Controlled Driver
- Example #3 - Voltage Controlled Driver
- Example #4 - Current Controlled Driver
- Example #5 - Current Controlled Driver
- Example #6 - Current Controlled Driver
- Example #7 - Current Controlled Driver
- Example #8 - Current Controlled Driver
- Voltage Waveform Samples
- Notes
- Example #1 - Voltage Controlled Driver
- Example #2 - Voltage Controlled Driver
- Example #3 - Voltage Controlled Driver
- Example #4 - Current Controlled Driver
- Example #5 - Current Controlled Driver
- Example #6 - Current Controlled Driver
- Example #7 - Current Controlled Driver
- Example #8 - Current Controlled Driver
- Map - Exhaust Systems
- Exhaust Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Catalytic Converters
- Exhaust And Tail Pipes
- Exhaust Connections
- Hangers
- Heat Risers (Mechanical EFE Devices)
- Heat Shields
- Manifolds (Cast And Tube Type)
- Mechanical EFE Devices
- Muffler Valve
- Mufflers And Resonators
- Reason Code Explanation
- Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Map - Heating, Ventilation, & Air Conditioning
- Heating, Ventilation & Air Conditioning Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Accumulators
- Actuators (Electrical)
- Actuators (Vacuum)
- Air Conditioning Fittings
- Air Conditioning Hoses
- Air Conditioning Metal Lines
- Air Control Doors
- Air Dams (External)
- Air Distribution System
- Belts
- Blend Doors
- Blower Fans (Blower Wheel Or Squirrel Cage)
- Blower Motors
- Blower Resistors
- Blower Switches
- Cabin Air Filters
- Circuit Breakers
- Compressor Clutch Assemblies
- Compressors
- Condenser Air Seals
- Condenser Fan Motors
- Condensers
- Connectors
- Control Cables
- Control Heads (Function Selectors)
- Control Linkages
- Control Modules
- Coolant
- Cooling Fan Blades
- Cooling Fan Clutches
- Cooling Fan Motors
- Evaporator Drain Tubes
- Evaporator Filters
- Evaporator Pressure Regulators (EPRS)
- Evaporators
- Expansion Valves
- Function Selectors
- Fuses, Fusible Links And Circuit Breakers
- Fusible Links
- Gaskets
- Heater Cases
- Heater Control Valves
- Heater Cores
- Heater Hoses
- High Pressure Relief Valves (HPRV)
- Idlers
- In-Line Filters
- Metal Fittings
- Metal Lines
- Mix And Air Control Doors (Blend Doors)
- ORIFACE Tubes
- O-Rings
- Pilot-Operated Absolutes (POAS)
- Plenums
- Pressure Control Valves
- Pressure Sensors
- Pulleys
- Radiators
- Receiver-DRIERS
- Refrigerant Oil
- Refrigerant
- Relays
- Seals
- Service Ports
- Spring Lock Couplings
- Suction Throttling Valves (STVS)
- Switches (Electrical)
- TENSIONERS
- Thermistors And Pressure Sensors
- Thermostats And Housings
- Vacuum Hoses And Tubes
- Vacuum Reservoirs
- Vacuum Tubes
- Valves In Receiver (VIRS)
- Water Pumps (Electric Auxiliary)
- Wiring Harnesses And Connectors
- Heating, Ventilation & Air Conditioning System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Heating, Ventilation & Air Conditioning Systems
- Map - Heating, Ventilation, & Air Conditioning
- Identification
- Metric Conversions
- OEM General Information
- Diagnostic Trouble Code Definitions - General Information
- How To Use The Engine Performance Section
- Maintenance Reminder Light (Reset Procedures)
- Air Bag Restraints & SRS Components - Inspection & Replacement Tables
- Specifications Index
- Steering
- Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
- Steering & Suspension Systems
- Wheel And Tire
- Steering & Suspension CHECKSHEET
- Wheels & Tires CHECKSHEET
- Steering And Suspension, Wheel Alignment, Wheels And Tires
- Notes
- Active Handling
- Active Suspension Control Modules
- Active Variable Ratio Steering
- Active Yaw Control
- Adaptive Cruise Control
- Advance TRAC
- Air Bags
- Air Ride Control Modules
- Air Ride Suspension Torsion Springs (Counter Balancing)
- Air Ride Suspension
- Air Ride Tubes
- Air Shocks And Air Struts
- Air Spring Valves
- Air Springs
- Air Suspension Control Valves
- Air Suspension DRIERS
- Axle Acceleration Sensor
- Ball Joints
- Body Acceleration Sensor
- Bushings
- Center Links
- Compressors
- Continuous Damping Control
- Control Arm Shafts
- Control Arms
- Control Modules
- Distance Regulation Control Module
- Distance Regulation Sensor
- Drag Links
- Dynamic Stability Control
- Dynamic Stability Traction Control
- Electronic Ride Control Shocks And Struts
- Electronic Stability Control
- Electronic Suspension System
- Flex Couplers
- Gaskets
- Height Sensors
- Hydraulic Hoses
- Hydraulic Power Steering Pumps
- Hydraulic Suspension Hoses
- Hydraulic Suspension Pumps
- Idler Arms
- Intermediate Shaft U-Joints
- King Pins
- Modules
- Pitman Arms
- Power Steering Belts
- Power Steering Coolers
- Power Steering Fluid
- Power Steering Hoses
- Power Steering Lines (Steel)
- Power Steering Pumps - Electric
- Power Steering Pumps
- Radar Sensor
- Radius Arms
- Relay Rods
- Relays
- Sensors
- Shock Absorbers, Strut Cartridges And Strut Assemblies
- Spindles
- Springs, Coil, Leaf And Torsion Bars
- STABILITRAC
- Stability Management System
- Steering Angle Sensor
- Steering Arms
- Steering Couplers
- Steering Dampers
- Steering Gears (Except Rack And Pinion)
- Steering Gears, Rack And Pinion
- Steering Knuckles
- Strike Out Bumpers
- Strut Bearing Plate Assemblies
- Strut Rods
- Suspension Pumps (Hydraulic)
- Sway Bar Links
- Sway Bar Mounting Bushings
- Sway Bars
- Switches
- Tie Rod Ends (Inner And Outer)
- Tire Pressure Monitoring System
- Tire Pressure Sensors
- Tires
- Torque Sensor
- Torsion Springs
- Track Bar Bushings
- Track Bars
- Trailing Arm Bushings
- Trailing Arms
- Valve Stems
- Vehicle Dynamics Control
- Vehicle Speed Sensor
- Vehicle Stability Assist
- Vehicle Stability/Skid Control
- Warning Lamps
- Wheel Alignment
- Wheel Attachment Hardware
- Wheel Bearings, Races And Seals
- Wheels (Rims)
- Wiring Harnesses And Connectors
- Reason Code Explanation
- Automotive Terminology & Definitions
- Wheel Alignment Theory & Operation - General Information
- Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- General Servicing
- Cabin Air Filter (Special Applications) - General Information
- HVAC System - Compressor Applications & Body Designations
- HVAC System - Compressor Refrigerant Oil Checking
- Refrigerant Oils
- Servicing Precautions
- Checking Compressor Oil
- DELPHI-Thermal (HARRISON) Hd6/Ht6/HU6 & Hd6/Hr-6HE 6-CYL., V5 5-CYL. & V7 7-CYL.
- Ford FS-10 10-Cylinder
- Ford SC90V Variable Scroll
- Ford SC115 Fixed Scroll
- NIPPONDENSO 10-Cylinder
- NIPPONDENSO 10S15/10S17/10S20
- NIPPONDENSO 10PA17/10PA17C 10-CYL.
- SANDEN Scroll
- SANDEN MSC90-C Scroll
- SANDEN SD-7H15 7-Cylinder
- SANDEN TRS-90 & Tr-105 Scroll
- ZEXEL Rotary Vane
- HVAC System - Compressor Servicing
- DELPHI-Thermal (HARRISON) Hd6/Ht6/HU6 & Hd6/Hr-6HE 6-CYL., V5 5-CYL. & V7 7-CYL.
- Ford FS-10 10-Cylinder
- Ford SC90V Scroll
- Ford SC115 Scroll
- NIPPONDENSO 10-Cylinder
- NIPPONDENSO 10S15/10S17/10S20
- NIPPONDENSO 10PA17/10PA17C 10-Cylinder
- SANDEN Scroll
- SANDEN MSC90-C Scroll
- SANDEN SD-7H15 7-Cylinder
- SANDEN TRS-90 Scroll
- SANDEN TRS-105 Scroll
- ZEXEL Rotary Vane
- HVAC System - General Servicing Procedures
- USING R-134a REFRIGERANT
- System Service Valves
- Service Equipment
- Manifold Gauge Set
- Pressure-Temperature Relationship
- Pressure Gauge Readings
- Orifice Tube Replacement
- Refrigerant Recovery/Recycling
- Flushing A/C System
- Evacuating A/C System
- Charging A/C System
- Leak Testing
- HVAC System - Refrigerant Oil & Refrigerant Specifications
- HVAC Control Systems
- Heater Systems
- Heater Systems - Wiring
- HVAC System - Manual
- HVAC System - Manual - Wiring
- General Servicing
- Maintenance
- Restraints
- Air Bag, SRS
- Air Bag Restraint Systems
- Description & Operation
- Component Locations
- Servicing
- System Operation Check
- Air Bag Safety Precautions
- Adjustments
- Disabling & Activating Air Bag System
- Disposal Procedures
- Post-Collision Inspection
- Removal & Installation
- Diagnostics
- Diagnostic Tests
- Test 1A: Identifying System Problems
- Test 1B: Repairing Stored Codes
- Test 1C: Repairing Passenger-Side Air Bag Disable (Pad) Switch
- Test 2A: Driver Squib Circuit Open (Active Code)
- Test 3A: Driver Squib Circuit Shorted (Active Code)
- Test 4A: Either Squib Circuit Shorted To Battery (Active Code)
- Test 5A: Either Squib Circuit Shorted To Ground (Active Code)
- Test 6A: Loss Of Ignition Run Only (Active Code)
- Test 7A: Loss Of Ignition Run-Start (Active Code)
- Test 8A: No Cluster Communication-No Cluster CCD Bus Message (Active Code)
- Test 9A: Passenger Squib Circuit Open (Active Code)
- Test 10A: Passenger Squib Circuit Shorted (Active Code)
- Test 11A: Warning Lamp Open (Active Code)
- Test VER-1A: Air Bag Verification Test
- Test VER-2A: Body Verification Test
- Vehicle Communications
- Torque Specifications
- Wiring Diagrams
- Supplemental Inflatable Restraint System Deactivation Procedures
- Special Care During Mechanical Repairs
- DAIMLERCHRYSLER
- Ford Motor Co.
- System Operation Check
- Service Precautions
- Disabling & Activating Air Bag System
- Notes
- Disabling System (Continental & Town Car)
- Activating System (Continental & Town Car)
- Disabling System (Contour, Mustang, Mystique & Ranger)
- Activating System (Contour, Mustang, Mystique & Ranger)
- Disabling System (Cougar)
- Activating System (Cougar)
- Disabling System (Crown Victoria & Grand Marquis)
- Activating System (Crown Victoria & Grand Marquis)
- Disabling System (Econoline)
- Activating System (Econoline)
- Disabling System (Escort)
- Activating System (Escort)
- Disabling System (Excursion & F250/350 Super Duty)
- Activating System (Excursion & F250/350 Super Duty)
- Disabling System (Expedition & Navigator)
- Activating System (Expedition & Navigator)
- Disabling System (Explorer & Mountaineer)
- Activating System (Explorer & Mountaineer)
- Disabling System (Focus)
- Activating System (Focus)
- Disabling System (F150 & F250 Light Duty)
- Activating System (F150 & F250 Light Duty)
- Disabling System (LS)
- Activating System (LS)
- Disabling System (Sable & Taurus)
- Activating System (Sable & Taurus)
- Disabling System (Villager)
- Activating System (Villager)
- Disabling System (Windstar)
- Activating System (Windstar)
- Air Bag Simulator
- Driver Air Bag Module
- Notes
- Removal & Installation (Continental, Contour, Cougar, Escort, Escort Coupe, Focus, LS, Mustang, Mystique, Ranger & Town Car)
- Removal & Installation (Crown Victoria & Grand Marquis)
- Removal & Installation (Econoline, Excursion, Explorer, F150, F250 Light Duty, F250/350 Super Duty, Expedition, Mountaineer & Navigator)
- Passenger Air Bag Module
- Torque Specifications
- General Motors
- Notes
- System Operation Check
- Service Precautions
- Disabling & Activating Air Bag System
- Notes
- Disabling System (Alero, Grand Am & Malibu)
- Activating System (Alero, Grand Am & Malibu)
- Disabling System (Astro & Safari)
- Activating System (Astro & Safari)
- Disabling System (Bonneville, LeSabre & Park Avenue)
- Activating System (Bonneville, LeSabre & Park Avenue)
- Disabling System (Blazer, Bravada, Envoy, Jimmy, Sonoma & S10)
- Activating System (Blazer, Bravada, Envoy, Jimmy, Sonoma & S10)
- Disabling System ("C" & "K" Pickup, & Escalade)
- Activating System ("C" & "K" Pickup, & Escalade)
- Disabling System (Camaro & Firebird)
- Activating System (Camaro & Firebird)
- Disabling System (Catera)
- Activating System (Catera)
- Disabling System (Cavalier & Sunfire)
- Activating System (Cavalier & Sunfire)
- Disabling System (Century, Grand Prix, Intrigue & Regal)
- Activating System (Century, Grand Prix, Intrigue & Regal)
- Disabling System (Corvette)
- Activating System (Corvette)
- Disabling System (DeVille & Seville)
- Activating System (DeVille & Seville)
- Disabling System (Eldorado)
- Activating System (Eldorado)
- Disabling System (Express, Van & Savana)
- Activating System (Express, Van & Savana)
- Disabling System (Impala & Monte Carlo)
- Activating System (Impala & Monte Carlo)
- Disabling System (Lumina)
- Activating System (Lumina)
- Disabling System (Metro & Firefly (Canadian))
- Activating System (Metro & Firefly (Canadian))
- Disabling System (Montana, Silhouette & Venture)
- Activating System (Montana, Silhouette & Venture)
- Disabling System (Prizm)
- Activating System (Prizm)
- Disabling System (Saturn "L" Series)
- Activating System (Saturn "L" Series)
- Disabling System (Saturn "S" Series)
- Activating System (Saturn "S" Series)
- Disabling System (Sierra, Silverado, Suburban, Tahoe & Yukon)
- Activating System (Sierra, Silverado, Suburban, Tahoe & Yukon)
- Disabling System (Tracker)
- Activating System (Tracker)
- Jeep
- Air Bag Restraint Systems
- Air Bag, SRS
- Steering
- Manual Steering
- Steering Knuckles - 4WD
- Steering System - Power Recirculating Ball
- Description & Operation
- Testing
- Lubrication
- Adjustments
- Removal & Installation
- Overhaul
- Torque Specifications
- Power Steering
- Steering Knuckles - 4WD
- Steering System - Power Recirculating Ball
- Description & Operation
- Testing
- Lubrication
- Adjustments
- Removal & Installation
- Overhaul
- Torque Specifications
- Steering Wheel & Steering Column
- Manual Steering
- Suspension
- Front Suspension
- Description
- Adjustments & Inspection
- Removal & Installation
- Torque Specifications
- Rear Suspension
- Wheel Alignment Specifications & Adjustment Procedures
- Front Suspension
- Transmission
- Clutch
- Manual Trans
- Manual Transmission (Service Information)
- Overhaul - Ax-5 Manual Transmission
- Overhaul - 231LD Transfer Case
- External Pages