Repair and Diagnosis

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• Quick Lookups
  • Electrical Component Locations
    • Engine Control System - 2.0L (L34 GMDAT) - Component Locator & Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Component Views
    • Wiring Systems - Component Locator - Electrical Center Identification Views
    • Wiring Systems - Component Locator - Master Electrical Component List
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Technical Service Bulletins
  • Wiring Diagrams
    • Automatic Transmission - ZF 4HP 16 - Schematic And Routing Diagrams
    • Engine Control System - 2.0L (L34 GMDAT) - Component Locator & Connector End Views
    • Engine Control System - 2.0L (L34 GMDAT) - Schematic And Routing Diagrams
    • Engine Control System - 2.5L (LBK) - Engine Control Module (ECM) Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Connector End Views
    • Engine Control System - 2.5L (LBK) - Schematic And Routing Diagrams
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
    • Wiring Systems - In-Line Harness Connector End Views
    • Wiring Systems - Power And Grounding Connector End Views
    • Wiring Systems - Schematic And Routing Diagrams
    • Wiring Systems - Splice Pack Connector End View
• Accessories & Equipment
  • Anti-Theft Systems
    • Door System
    • Keyless Entry System
    • Theft Deterrent System
  • Communication Devices
    • Body Control System
    • Communications Systems
  • Cruise Control Systems
  • Entertainment Systems
  • Exterior Lights
    • Lighting Systems
  • Gauges & Instrument Panels
    • Instrument Panel, Gages, And Console
  • Headlights
    • Lighting Systems
  • Heated Glass/Defoggers
    • Body Glass System
  • Horns
    • Horn System
  • Ignition Switch/Steering Lock
    • Steering Wheel & Steering Column
  • Infotainment
    • Entertainment Systems
  • Interior/Exterior Trim
    • Door System
    • Exterior Trim
    • Instrument Panel, Gages, And Console
    • Interior Trim
  • Interior/Illumination Lights
    • Lighting Systems
  • Mirrors
    • Door System
  • Seats
    • Seat System
  • Steering Column Switches
    • Steering Wheel & Steering Column
  • Window Motors & Regulators
    • Body Glass System
    • Door System
  • Wiper/Washer Systems
    • Wiper System & Washer System
• Body & Frame
  • Door Locks
    • Door System
    • Keyless Entry System
    • Theft Deterrent System
  • Exterior Body Panels
    • Air/Wind Noise
    • Body Front End
    • Body Rear End
    • Bumper System
    • Squeaks And Rattles
    • Water Leaks
  • Exterior/Interior Trim
    • Door System
    • Exterior Trim
    • Instrument Panel, Gages, And Console
    • Interior Trim
  • Frames, Subframes & Crossmembers
    • Frame And Underbody
  • Ignition Switch/Steering Lock
    • Steering Wheel & Steering Column
  • Mirrors
    • Door System
  • Seats
    • Seat System
  • Sun Roof/T-Top/Convertible Top
  • Windows
    • Body Glass System
    • Door System
• Brakes
  • Anti-Lock Brakes
    • Antilock Brake System
  • Mechanical - Hydraulic
    • Disc Brakes
    • Hydraulic Brake System
  • Parking Brake System
  • Traction Control
    • Antilock Brake System
• Drivelines & Axles
  • Differentials & Drive Axles
    • Front Drive Axle
• Electrical
  • Body Electrical
    • Accessory Power Socket
    • Engine Control System - 2.0L (L34 GMDAT) - Component Locator & Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Control Module (ECM) Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Component Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Connector End Views
    • Wiring Systems - Component Locator - Electrical Center Identification Views
    • Wiring Systems - Component Locator - Master Electrical Component List
    • Wiring Systems - Diagnostic Information And Procedures
    • Wiring Systems - In-Line Harness Connector End Views
    • Wiring Systems - Power And Grounding Connector End Views
    • Wiring Systems - Repair Instructions
    • Wiring Systems - Schematic And Routing Diagrams
    • Wiring Systems - Special Tools And Equipment
    • Wiring Systems - Splice Pack Connector End View
  • Charging Systems
    • Engine Electrical System
  • Component Locations
    • Engine Control System - 2.0L (L34 GMDAT) - Component Locator & Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Component Views
    • Wiring Systems - Component Locator - Electrical Center Identification Views
    • Wiring Systems - Component Locator - Master Electrical Component List
  • Gauges
    • Instrument Panel, Gages, And Console
  • Horns
    • Horn System
  • Motors, Switches, Relays
    • Accessory Power Socket
    • Engine Control System - 2.0L (L34 GMDAT) - Component Locator & Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Control Module (ECM) Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Component Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Connector End Views
    • Wiring Systems - Component Locator - Electrical Center Identification Views
    • Wiring Systems - Component Locator - Master Electrical Component List
    • Wiring Systems - Diagnostic Information And Procedures
    • Wiring Systems - In-Line Harness Connector End Views
    • Wiring Systems - Power And Grounding Connector End Views
    • Wiring Systems - Repair Instructions
    • Wiring Systems - Schematic And Routing Diagrams
    • Wiring Systems - Special Tools And Equipment
    • Wiring Systems - Splice Pack Connector End View
  • Starter
    • Engine Electrical System
  • Wiring Diagrams
    • Automatic Transmission - ZF 4HP 16 - Schematic And Routing Diagrams
    • Engine Control System - 2.0L (L34 GMDAT) - Component Locator & Connector End Views
    • Engine Control System - 2.0L (L34 GMDAT) - Schematic And Routing Diagrams
    • Engine Control System - 2.5L (LBK) - Engine Control Module (ECM) Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Connector End Views
    • Engine Control System - 2.5L (LBK) - Schematic And Routing Diagrams
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
    • Wiring Systems - In-Line Harness Connector End Views
    • Wiring Systems - Power And Grounding Connector End Views
    • Wiring Systems - Schematic And Routing Diagrams
    • Wiring Systems - Splice Pack Connector End View
• Engine Mechanical
  • Cooling System (Mechanical)
    • Engine Cooling System
  • Engine Exhaust
  • Lubrication System
    • Maintenance And Lubrication
  • Mechanical
    • Engine Mechanical - 2.0L (L34 GMDAT) - Component Locator
    • Engine Mechanical - 2.0L (L34 GMDAT) - Description And Operation
    • Engine Mechanical - 2.0L (L34 GMDAT) - Diagnostic Information And Procedures
    • Engine Mechanical - 2.0L (L34 GMDAT) - Repair Instructions
    • Engine Mechanical - 2.0L (L34 GMDAT) - Special Tools And Equipment
    • Engine Mechanical - 2.0L (L34 GMDAT) - Specifications
    • Engine Mechanical - 2.5L (LBK) - Component Locator
    • Engine Mechanical - 2.5L (LBK) - Description And Operation
    • Engine Mechanical - 2.5L (LBK) - Diagnostic Information And Procedures
    • Engine Mechanical - 2.5L (LBK) - Repair Instructions
    • Engine Mechanical - 2.5L (LBK) - Special Tools And Equipment
    • Engine Mechanical - 2.5L (LBK) - Specifications
  • Starter
    • Engine Electrical System
• Engine Performance
  • Emissions
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Engine Control System - 2.0L (L34 GMDAT) - Component Locator & Connector End Views
    • Engine Control System - 2.0L (L34 GMDAT) - Description And Operation
    • Engine Control System - 2.0L (L34 GMDAT) - Diagnostic Information And Procedures
    • Engine Control System - 2.0L (L34 GMDAT) - DTC P1106 To DTC P1655
    • Engine Control System - 2.0L (L34 GMDAT) - Flash Codes DTC 004 To DTC 045
    • Engine Control System - 2.0L (L34 GMDAT) - Flash Codes DTC 049 To OBDII DTC P0140
    • Engine Control System - 2.0L (L34 GMDAT) - Repair Instructions
    • Engine Control System - 2.0L (L34 GMDAT) - Schematic And Routing Diagrams
    • Engine Control System - 2.0L (L34 GMDAT) - Special Tools And Equipment
    • Engine Control System - 2.0L (L34 GMDAT) - Specifications
    • Engine Control System - 2.0L (L34 GMDAT) - Symptom Troubleshooting And Diagnosis
    • Engine Control System - 2.0L (L34 GMDAT) DTC P0141 To DTC P0700
    • Engine Control System - 2.5L (LBK) - Description And Operation
    • Engine Control System - 2.5L (LBK) - Diagnostic Information And Procedures
    • Engine Control System - 2.5L (LBK) - DTC P0030 To DTC P0134 Or P0154
    • Engine Control System - 2.5L (LBK) - DTC P0137 Or P0157 To DTC P0403
    • Engine Control System - 2.5L (LBK) - DTC P0404 To DTC P1174
    • Engine Control System - 2.5L (LBK) - Engine Control Module (ECM) Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Component Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Connector End Views
    • Engine Control System - 2.5L (LBK) - Repair Instructions
    • Engine Control System - 2.5L (LBK) - Schematic And Routing Diagrams
    • Engine Control System - 2.5L (LBK) - Special Tools And Equipment
    • Engine Control System - 2.5L (LBK) - Specifications
    • Engine Control System - 2.5L (LBK) - Symptom Troubleshooting And Diagnosis
    • Engine Control System - 2.5L (LBK) DTC P1172 Or P1175 To DTC P1673
  • Testing & Diagnosis
    • Engine Control System - 2.0L (L34 GMDAT) - Component Locator & Connector End Views
    • Engine Control System - 2.0L (L34 GMDAT) - Description And Operation
    • Engine Control System - 2.0L (L34 GMDAT) - Diagnostic Information And Procedures
    • Engine Control System - 2.0L (L34 GMDAT) - DTC P1106 To DTC P1655
    • Engine Control System - 2.0L (L34 GMDAT) - Flash Codes DTC 004 To DTC 045
    • Engine Control System - 2.0L (L34 GMDAT) - Flash Codes DTC 049 To OBDII DTC P0140
    • Engine Control System - 2.0L (L34 GMDAT) - Repair Instructions
    • Engine Control System - 2.0L (L34 GMDAT) - Schematic And Routing Diagrams
    • Engine Control System - 2.0L (L34 GMDAT) - Special Tools And Equipment
    • Engine Control System - 2.0L (L34 GMDAT) - Specifications
    • Engine Control System - 2.0L (L34 GMDAT) - Symptom Troubleshooting And Diagnosis
    • Engine Control System - 2.0L (L34 GMDAT) DTC P0141 To DTC P0700
    • Engine Control System - 2.5L (LBK) - Description And Operation
    • Engine Control System - 2.5L (LBK) - Diagnostic Information And Procedures
    • Engine Control System - 2.5L (LBK) - DTC P0030 To DTC P0134 Or P0154
    • Engine Control System - 2.5L (LBK) - DTC P0137 Or P0157 To DTC P0403
    • Engine Control System - 2.5L (LBK) - DTC P0404 To DTC P1174
    • Engine Control System - 2.5L (LBK) - Engine Control Module (ECM) Connector End Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Component Views
    • Engine Control System - 2.5L (LBK) - Engine Controls Connector End Views
    • Engine Control System - 2.5L (LBK) - Repair Instructions
    • Engine Control System - 2.5L (LBK) - Schematic And Routing Diagrams
    • Engine Control System - 2.5L (LBK) - Special Tools And Equipment
    • Engine Control System - 2.5L (LBK) - Specifications
    • Engine Control System - 2.5L (LBK) - Symptom Troubleshooting And Diagnosis
    • Engine Control System - 2.5L (LBK) DTC P1172 Or P1175 To DTC P1673
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control 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
    • Map - Routine Inspection Reference Guide
  • Check Lists
    • Symptom Check List Worksheet - General Information
  • Driveline/Axles
    • Drive Axle Noise Diagnosis - General Information
    • Gear Tooth Contact Patterns - General Information
    • Map - Drive Train & Transmission
    • Trouble Shooting - Clutches - General Information
  • Electrical
    • Map - Electrical Systems
    • Using lemon2025'S System Wiring Diagrams
  • Engine
    • Engine Overhaul Procedures - General Information
    • General Cooling System Service - General Information
  • Engine Performance
    • Electrostatic Discharge Warning - General Information
    • Engine Performance Diagnostic Routine Outline - General Information
    • Engine Performance Safety Precautions
    • Map - Engine Performance & Maintenance
    • Parasitic Load Explanation & Test Procedures - General Information
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
    • Waveforms - Injector Pattern Tutorial - General Information
  • Map - Exhaust Systems
  • Heating, Ventilation & A/C (HVAC)
    • Map - Heating, Ventilation, & Air Conditioning
  • Hoist/Jack
    • General Information
  • Identification
    • CANADIAN Model Cross-Reference
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Cautions And Notices
    • General Information
    • Vibration Symptoms Diagnosis And Correction
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • HVAC Control Systems
    • HVAC Systems
    • HVAC Systems - Automatic
    • HVAC Systems - Manual
• Maintenance
  • Procedures
    • Maintenance And Lubrication
• Restraints
  • Air Bag, SRS
    • Supplemental Inflatable Restraint System
  • Restraints Control Systems
    • Seat Belt System
  • Seat Belts
    • Seat Belt System
• Steering
  • Electronic Steering
    • Variable Effort Steering System
  • Manual Steering
    • Power Steering System
  • Power Steering System
  • Steering Wheel & Steering Column
  • Manual Steering Gear
• Suspension
  • Front Suspension
    • Front Suspension
    • Suspension General Diagnosis
  • Rear Suspension
    • Rear Suspension
    • Suspension General Diagnosis
  • Wheel Alignment
  • Wheels & Tire System
    • Tires And Wheels
• Transmission
  • Automatic Trans
    • Automatic Transmission - ZF 4HP 16 - Automatic Transmission Internal Wiring Harness Check
    • Automatic Transmission - ZF 4HP 16 - Component Locator
    • Automatic Transmission - ZF 4HP 16 - Description And Operation
    • Automatic Transmission - ZF 4HP 16 - Diagnostic Information And Procedures
    • Automatic Transmission - ZF 4HP 16 - DTC P0218 To DTC P0722
    • Automatic Transmission - ZF 4HP 16 - DTC P0721 To DTC P1606
    • Automatic Transmission - ZF 4HP 16 - DTC P1606 To DTC P1861
    • Automatic Transmission - ZF 4HP 16 - DTC P1861 To DTC P1883
    • Automatic Transmission - ZF 4HP 16 - DTC P1884 To DTC P1886
    • Automatic Transmission - ZF 4HP 16 - Repair Instructions
    • Automatic Transmission - ZF 4HP 16 - Schematic And Routing Diagrams
    • Automatic Transmission - ZF 4HP 16 - Special Tools And Equipment
    • Automatic Transmission - ZF 4HP 16 - Specifications
    • Automatic Transmission - ZF 4HP 16 - Symptom Troubleshooting And Diagnosis
    • Shift Interlock System
  • Clutch System
  • Hydraulic Diagrams
    • Automatic Transmission - ZF 4HP 16 - Description And Operation
  • Manual Transmission - D20