Engine Controls - Self-Diagnostics
- Introduction
- Self-Diagnostic System
- Test Equipment
- Summary
- Diagnostic Trouble Code Definitions
- Connector Identification
- Diagnostic Circuit Check
- Diagnostic Tests
- DTC P0107: Manifold Absolute Pressure Sensor Circuit Low Voltage Input
- DTC P0108: Manifold Absolute Pressure Sensor Circuit High Voltage Input
- DTC P0112: Intake Air Temperature Sensor Circuit Low Voltage Input
- DTC P0113: Intake Air Temperature Sensor Circuit High Voltage Input
- DTC P0116: Engine Coolant Temperature Sensor Circuit Range/Performance Problem
- DTC P0117: Engine Coolant Temperature Sensor Circuit Low Voltage Input
- DTC P0118: Engine Coolant Temperature Sensor Circuit High Voltage Input
- DTC P0122: Throttle Position Sensor Circuit Low Voltage Input
- DTC P0123: Throttle Position Sensor Circuit High Voltage Input
- DTC P0128: Cooling System Malfunction
- DTC P0131: Primary Heated Oxygen Sensor Circuit Low Voltage
- DTC P0132: Primary Heated Oxygen Sensor Circuit High Voltage
- DTC P0133: Primary Heated Oxygen Sensor Slow Response
- DTC P0135: Primary Heated Oxygen Sensor Heater Circuit Malfunction Or DTC P0141: Secondary Heated Oxygen Sensor Heater Circuit Malfunction
- DTC P0137: Secondary Heated Oxygen Sensor Low Voltage
- DTC P0138: Secondary Heated Oxygen Sensor High Voltage
- DTC P0139: Secondary Heated Oxygen Sensor Slow Response
- DTC P0171: Fuel System Too Lean Or DTC P0172: Fuel System Too Rich
- DTC P0300: Random Misfire Set With DTC P0301, P0302, P0303, P0304, P0305 Or P0306
- DTC P0301, P0302, P0303, P0304, P0305 Or P0306: Misfire In One Cylinder
- DTC P0325: Knock Sensor Circuit Malfunction
- DTC P0335: Crankshaft Position Sensor No Signal Or DTC P0336: Crankshaft Position Sensor Intermittent Interruption
- DTC P0401: EGR System Insufficient Flow Detected
- DTC P0420: Catalyst System Efficiency Below Threshold
- DTC P0451: Fuel Tank Pressure Sensor Circuit Range/Performance Problem
- DTC P0452: Fuel Tank Pressure Sensor Circuit Low Voltage
- DTC P0453: Fuel Tank Pressure Sensor Circuit High Voltage
- DTC P0505: Idle Control System Malfunction
- DTC P0720: Countershaft Speed Sensor Circuit
- DTC P1106: Barometric Pressure Sensor Range/Performance Problem
- DTC P1107: Barometric Pressure Sensor Circuit Low Voltage Or DTC P1108: Barometric Pressure Sensor Circuit High Voltage
- DTC P1121: Throttle Position Sensor Signal Lower Than Expected
- DTC P1122: Throttle Position Sensor Signal Higher Than Expected
- DTC P1128: Manifold Absolute Pressure Sensor Signal Lower Than Expected
- DTC P1129: Manifold Absolute Pressure Sensor Signal Higher Than Expected
- DTC P1259: Variable Valve Timing & Lift Electronic Control System Malfunction
- DTC P1297: Low Voltage Electrical Load Detector Circuit
- DTC P1298: High Voltage In Electrical Load Detector Circuit
- DTC P1361: Top Dead Center Sensor No. 1 Intermittent Interruption, DTC P1362: Top Dead Center Sensor No. 1 No Signal, DTC P1366: Top Dead Center Sensor No. 2 Intermittent Interruption Or DTC P1367: Top Dead Center Sensor No. 2 No Signal
- DTC P1456: Evaporative Emission Control System Leak Detected (Fuel Tank System)
- Fuel Tank Vapor Control Valve Test
- DTC P1457: Evaporative Emission Control System Leak Detected (Canister System)
- Evaporative Emission 2-Way Valve Test
- DTC P1491: Exhaust Gas RECIRCULATION Valve Insufficient Lift Detected
- DTC P1498: EGR Valve Lift Sensor Voltage High
- DTC P1519: Idle Air Control Valve Circuit Malfunction
- DTC P1607: Powertrain Control Module Internal Circuit Malfunction
- DTC P1676: Frame-To-Powertrain Torque Down Request Signal Line Malfunction (3.2CL & 3.2TL)
- DTC P1678: Frame-To-Powertrain Torque Down Request Signal Line Malfunction (3.2CL & 3.2TL)