Engine Controls - Tests W/Codes
- Introduction
- Model Identification
- Self-Diagnostic System
- No Start Tests NS-1A To NS-13E
- Notes
- NS-1A: Reading Faults & Checking Spark
- NS-2A: Checking Fuel System
- NS-2B: Throttle Position Sensor Voltage Low (DTC 24)
- NS-3A: Checking Spark Distribution & Engine Mechanical Condition
- NS-4A: Repairing Low Fuel Pressure
- NS-4B: Repairing High Fuel Pressure
- NS-5A: Checking Ignition Coil
- NS-5B: Checking Camshaft & Crankshaft Signals
- NS-6A: Checking Fuel Pump
- NS-6B: Checking Fuel Pump
- NS-6C: Checking Fuel Pump
- NS-7A: Repairing No Response Condition
- NS-7B: Repairing No Response Condition
- NS-7C: Repairing No Response Condition
- NS-8A: Checking Crankshaft Sensor
- NS-8B: Checking Crankshaft Sensor
- NS-9A: Checking Camshaft Sensor
- NS-10A: Checking For No Signal From Camshaft & Crankshaft Sensors
- NS-10B: Checking For No Signal From Camshaft & Crankshaft Sensors
- NS-11A: Auto Shutdown (ASD) Relay Circuit (DTC 42)
- NS-12A: No Auto Shutdown (ASD) Relay Voltage Sensed At SBEC (DTC 24)
- NS-13A: Checking Idle Speed Motor Operation
- NS-13B: Checking Idle Speed Motor Operation
- NS-13C: Checking Idle Speed Motor Operation
- NS-13D: Checking Idle Speed Motor Operation
- NS-13E: Checking Idle Speed Motor Operation
- DRIVEABILITY Tests Dr-1A To Dr-45A
- Notes
- Dr-1A: Checking System For Faults
- Dr-1B: DRB-II Fault Messages
- Dr-2A: Slow Change In 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: Oxygen Sensor Signal Stays At Center (DTC 21)
- Dr-8A: Oxygen Sensor Signal Shorted High (DTC 21)
- Dr-9A: Coolant Sensor Voltage Too High (DTC 22)
- Dr-10A: Coolant Sensor Voltage Too Low (DTC 22)
- Dr-11A: Charge Temperature Sensor Voltage High (DTC 23)
- Dr-12A: Charge Temperature Sensor Voltage 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 (AIS) Motor Circuits (DTC 25)
- Dr-16A: Injector No. 1 Peak Current Not Reached (DTC 26)
- Dr-17A: Injector No. 1 Control CKT & Peak Current Not Reached (DTC 26 & 27)
- Dr-18A: Injector No. 2 Peak Current Not Reached (DTC 26)
- Dr-19A: Injector No. 2 Control CKT & Peak Current Not Reached (DTC 26 & 27)
- Dr-20A: Injector No. 3 Peak Current Not Reached (DTC 26)
- Dr-21A: Injector No. 3 Circuit & Peak Current Not Reached (DTC 26 & 27)
- Dr-22A: EGR Solenoid Circuit (DTC 32)
- Dr-23A: A/C Clutch Relay Circuit (DTC 33)
- Dr-24A: Radiator Fan Relay Circuit (DTC 35)
- Dr-25A: No Auto Shutdown (ASD) Relay Voltage Sensed At SBEC (DTC 42)
- Dr-26A: Ignition Coil No. 1 Primary Circuit (DTC 43)
- Dr-26B: Ignition Coil No. 1 Primary Circuit
- Dr-27A: Ignition Coil No. 2 Primary Circuit (DTC 43)
- Dr-27B: Ignition Coil No. 2 Primary Circuit
- Dr-28A: Ignition Coil No. 3 Primary Circuit (DTC 43)
- Dr-28B: Ignition Coil No. 3 Primary Circuit
- Dr-29A: SBEC Failure EEPROM Write Denied
- Dr-30A: Checking Secondary Ignition & Timing
- Dr-31A: Checking Fuel Pressure
- Dr-31B: Checking Fuel Pressure
- Dr-32A: Checking Coolant & Throttle Position Sensor (TPS) Calibrations
- Dr-33A: Checking Map Sensor Calibration
- Dr-34A: Checking Oxygen Sensor Switching
- Dr-34B: Checking Oxygen Sensor Switching
- Dr-35A: Checking Idle Motor Operation
- Dr-35B: Checking Idle Motor Operation
- Dr-35C: Checking Idle Motor Operation
- Dr-35D: Checking Idle Motor Operation
- Dr-35E: Checking Idle Motor Operation
- Dr-36A: Checking Park/Neutral Switch Input
- Dr-37A: Checking SBEC Grounds & Power Circuits
- Dr-38A: Checking EGR Operation
- Dr-39A: Checking Engine Vacuum
- Dr-40A: Checking Minimum Idle Airflow
- Dr-41A: Performing No Fault Code Mechanical Test
- Dr-42A: Intermittent Test For Solenoids & Relays
- Dr-43A: Intermittent Test For Voltage Sensors
- Dr-43B: Intermittent Test For Slow Change Or No Change In Map Sensor
- Dr-44A: Intermittent Test For Automatic Idle Speed Motor Circuits
- Dr-45A: Intermittent Test For Fuel Injectors
- Verification Procedures VER-1 To VER-3