Engine Controls - Self-Diagnostics
- Introduction
- Self-Diagnostic System
- Summary
- Test Equipment
- Connector Identification
- Diagnostic Circuit Check
- Diagnostic Tests
- DTC P0107: Manifold Absolute Pressure (Map) Sensor Low Input Voltage
- DTC P0108: Manifold Absolute Pressure (Map) Sensor High Input Voltage
- DTC P0112: Intake Air Temperature (IAT) Sensor Low Input Voltage
- DTC P0113: Intake Air Temperature (IAT) Sensor High Input Voltage
- DTC P0116: Engine Coolant Temperature (ECT) Sensor Range/Performance Problem
- DTC P0117: Engine Coolant Temperature (ECT) Sensor Low Input Voltage
- DTC P0118: Engine Coolant Temperature (ECT) Sensor High Input Voltage
- DTC P0122: Throttle Position (TP) Sensor Low Input Voltage
- DTC P0123: Throttle Position (TP) Sensor High Input Voltage
- DTC P0131: Primary Heated Oxygen Sensor (Ho2S-1) Low Voltage
- DTC P0132: Primary Heated Oxygen Sensor (Ho2S-1) High Voltage
- DTC P0133: Primary Heated Oxygen Sensor (Ho2S-1) Slow Response
- DTC P0135 Or P0141: Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction
- DTC P0137: Secondary Heated Oxygen Sensor (Ho2S-2) Low Voltage
- DTC P0138: Secondary Heated Oxygen Sensor (Ho2S-2) High Voltage
- DTC P0139: Secondary Heated Oxygen Sensor (Ho2S-2) Slow Response
- DTC P0171 Or P0172: Fuel System Too Lean Or Too Rich
- DTC P0300 Set With DTC P0301, P0302, P0303 Or P0304: Random Misfire Detected
- DTC P0301, P0302, P0303 Or P0304: Cylinders No. 1-4 Misfire Detected
- DTC P0325: Knock Sensor (KS)
- DTC P0335, P0336, P1361, P1362, P1381 Or P1382: CKP/TDC/CYP Sensor
- DTC P0420: Catalyst System Efficiency Below Threshold
- DTC P0452: Fuel Tank Pressure Sensor (Ftps) Low Voltage
- DTC P0453: Fuel Tank Pressure Sensor (Ftps) High Voltage
- DTC P0500: Vehicle Speed Sensor (VSS) Circuit Malfunction (Low Input Voltage)
- DTC P0505: Idle Control System Malfunction
- DTC P1106: Barometric Pressure (BARO) Circuit Range/Performance
- DTC P1107 Or P1108: Barometric Pressure (BARO) Sensor Circuit Voltage High/Low
- DTC P1121: Throttle Position (TP) Lower Than Expected
- DTC P1122: Throttle Position (TP) Higher Than Expected
- DTC P1128: Manifold Absolute Pressure (Map) Lower Than Expected
- DTC P1129: Manifold Absolute Pressure (Map) Higher Than Expected
- DTC P1259: VTEC Pressure Switch Or Solenoid Valve Circuits
- DTC P1297: Electrical Load Detector (Eld) Low Voltage Input
- DTC P1298: Electrical Load Detector (Eld) High Voltage Input
- DTC P1336 Or P1337: Crankshaft Speed Fluctuation (CKF) Sensor
- DTC P1359: Crankshaft Position/Top Dead Center/Cylinder Position (CKP/TDC/CYP) Sensor Disconnected
- DTC P1456 Or P1457: Evaporative Emission Control System (EVAP) Leak Detected
- DTC P1508: Idle Air Control (IAC) Valve Circuit Failure
- DTC P1607: Powertrain Control Module (Pcm) Internal Circuit Failure
- DTC P1660: Automatic Transmission Fuel Injection (A/T FI) Data Line
- DTC P1681, P1682, P1686 Or P1687: Automatic Transmission Fuel Injection (A/T FI) Signal "A" & "B" Circuits