Engine Controls - Tests W/Codes - 4-CYL
- Introduction
- Model Identification
- Self-Diagnostic System
- No Start Diagnostic Flow Charts: NS-1A To NS-17A
- Notes
- NS-1A: Checking For Ignition Spark & Power Feed To Coil
- NS-2A: Checking For Fuel Spray & Fault Messages With DRB-II
- NS-3A: CHKNG INJTR Faults, PWR To SBEC, Map Sens/Theft Status
- NS-4A: CHKNG For Fuel Pressure, TPS & PWR Feed To Injectors
- NS-5A: Checking For Wet Plugs, Map Sensor & Ignition Timing
- NS-5B: Checking Valve Gear
- NS-6A: CHKG Fuel FLTR/Fuel Pump/Press Reg & PWR To Fuel Pump
- NS-6B: CHCKG Fuel FLTR/Fuel Pump/Press Reg & PWR To Fuel Pump
- NS-7A: Checking For Flooding Fuel Injector
- NS-7B: CHKG For Flooding Fuel INJ/Kinked Fuel Lines/Press Reg Operation
- NS-8A: CHKG For High Fuel Press At Press Reg & Fuel Tank
- NS-9A: Checking For Defective Coil Or Control Circuitry
- NS-10A: Checking Injector, Control Circuit & SBEC
- NS-10B: Checking Injector, Control Circuit & SBEC
- NS-11A: Checking DRB-II & System Faults
- NS-12A: CHCKNG For System Power, Operation Of Map Sens & SBEC
- NS-12B: CHCKG For System PWR & Operation Of Map Sensor & SBEC
- NS-13A: No Ignition Reference Signal During Cranking (DTC 11)
- NS-13B: No Ignition Reference Signal During Cranking
- NS-13C: No Ignition Reference Signal During Cranking
- NS-14A: ASD Relay Circuit (DTC 42)
- NS-15A: CHCKG ASD RLY, PWR Feed To Fuel Pump, O2 Sens/INJCTRS
- NS-16A: Checking Idle Speed Motor Operation
- NS-16B: Checking Idle Speed Motor Operation
- NS-16C: Checking Idle Speed Motor Operation
- NS-16D: Checking Idle Speed Motor Operation
- NS-16E: Checking Idle Speed Motor Operation
- NS-17A: Performing No Fault Code Mechanical Test
- DRIVEABILITY Diagnostic Flow Charts Dr-1A To Dr-45A
- Notes
- Dr-1A: Checking System For Faults
- Dr-1B: DRB-II Fault Messages
- Dr-2A: Slow Change In Idle Map Signal (DTC 13)
- Dr-3A: No Change In Map From Start To Run (DTC 13)
- Dr-4A: Map Voltage Too Low (DTC 14)
- Dr-5A: Map Voltage Too High (DTC 14)
- Dr-6A: No Vehicle Speed Signal (DTC 15)
- Dr-7A: O2 Signal Stays At Center (DTC 21)
- Dr-8A: O2 Signal Shorted To Voltage (DTC 21)
- Dr-9A: Coolant Sensor Voltage Too High (DTC 22)
- Dr-10A: Coolant Sensor Voltage Too Low (DTC 22)
- Dr-11A: Throttle Body Temperature High (DTC 23)
- Dr-12A: Throttle Body Temperature Low (DTC 23)
- Dr-13A: Throttle Position Sensor Voltage High (DTC 24)
- Dr-14A: Throttle Position Sensor Voltage Low (DTC 24)
- Dr-15A: Automatic Idle Speed Motor Circuits (DTC 25)
- Dr-16A: Purge Solenoid Circuit (DTC 31)
- Dr-17A: EGR Solenoid Circuit (DTC 32)
- Dr-18A: EGR System Failure (DTC 32)
- Dr-18B: EGR System Failure
- Dr-18C: EGR System Failure
- Dr-19A: A/C Clutch Relay Circuit (DTC 33)
- Dr-20A: A/C Clutch Relay Circuit (DTC 33)
- Dr-21A: A/C Clutch Relay Circuit (DTC 33)
- Dr-22A: A/C Clutch Relay Circuit (DTC 33)
- Dr-23A: A/C Clutch Relay Circuit (DTC 33)
- Dr-24A: Radiator Fan Relay Circuit (DTC 35)
- Dr-25A: Radiator Fan Relay Circuit (DTC 35)
- Dr-26A: Radiator Fan Relay Circuit (DTC 35)
- Dr-27A: Radiator Fan Relay Circuit (DTC 35)
- Dr-28A: Torque Converter Lock-Up Solenoid (DTC 37)
- Dr-29A: SBEC Failure EMR Mileage Not Stored & EEPROM Write Denied (DTC 63)
- Dr-30A: Checking Secondary Ignition & Timing
- Dr-31A: Checking Fuel Pressure
- Dr-31B: Checking Fuel Pressure
- Dr-32A: Checking Coolant & TPS Sensor Calibration
- Dr-33A: Checking Map Sensor Calibration
- Dr-34A: Checking Oxygen Sensor Switching
- Dr-34B: Checking Oxygen Sensor Switching
- Dr-35A: Checking Idle Speed Motor Operation
- Dr-35C: Checking Idle Speed Motor Operation
- Dr-35D: Checking Idle Speed Motor Operation
- Dr-35E: Checking Idle Speed Motor Operation
- Dr-36A: Checking Park/Neutral Switch Operation
- Dr-37A: Checking SBEC Grounds & Power Circuits
- Dr-38A: Checking EGR Operation Federal Emissions
- Dr-38B: Checking EGR Operation Federal Emissions
- Dr-38C: Checking EGR Operation Federal Emissions
- Dr-39A: Checking Engine Vacuum
- Dr-41A: Performing No Fault Code Mechanical Test
- Dr-42A: Intermittent Test For Solenoids & Relays
- Dr-43A: Intermittent Test For Voltage Sensor
- Dr-43B: Intermittent Test For Map Sensor Signal Change
- Dr-44A: Intermittent Test For Idle Motor Circuits
- Dr-45A: Intermittent Test For Injector Circuits
- Verification Flow Charts: VER-1 To VER-3
- Summary