Section 70 (Engine Controls - Tests W/Codes - 5.7L)
WARNING: This page is about a different car, the 1998 GMC Forward Control and 1998 Chevrolet Forward Control. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Diagnostic System
- Diagnostic Procedure
- Powertrain On-Board Diagnostic (OBD) System Check
- Mil Inoperative
- DLC Diagnosis Or No Scan Tool Data
- Reading Trouble Codes
- Trouble Code Definition
- Hard Or Intermittent Trouble Code Determination
- Clearing Diagnostic Trouble Codes (DTC)
- ECM/Pcm/VCM Location
- Diagnostic Materials
- Special Tools (Diagnostic)
- Scan Tool Usage
- Summary
- Diagnostic Trouble Codes
- Notes
- DTC P0101 - MAF Sensor System Performance
- DTC P0102 - MAF Sensor Circuit Low Frequency
- DTC P0103 - MAF Sensor Circuit High Frequency
- DTC P0106 - Map Sensor System Performance
- DTC P0107 - Map Sensor Circuit Low Voltage
- DTC P0108 - Map Sensor Circuit High Voltage
- DTC P0112 - IAT Sensor Circuit Voltage Low
- IAT Temperature-To-Resistance Values
- DTC P0113 - IAT Sensor Circuit High Voltage
- DTC P0117 - ECT Sensor Circuit Low Voltage
- ECT Temperature-To-Resistance Values
- DTC P0118 - ECT Sensor Circuit High Voltage
- DTC P0121 - TP Sensor Performance
- DTC P0122 - TP Sensor Circuit Low Voltage
- DTC P0123 - TP Sensor Circuit High Voltage
- DTC P0125 - ECT Excessive Time To Closed Loop
- DTC P0131 - Ho2S Circuit Low Voltage Bank 1, Sensor 1
- DTC P0132 - Ho2S Circuit High Voltage Bank 1, Sensor 1
- DTC P0133 - Ho2S Slow Response Bank 1, Sensor 1
- DTC P0134 - Ho2S Circuit Insufficient Activity Bank 1,
- DTC P0135 - Ho2S Heater Circuit Bank 1, Sensor 1
- DTC P0137 - Ho2S Circuit Voltage Low Bank 1, Sensor 2
- DTC P0138 - Ho2S Circuit Voltage High Bank 1, Sensor 2
- DTC P0140 - Ho2S Insufficient Activity Bank 1, Sensor 2
- DTC P0141 - Ho2S Heater Circuit Bank 1, Sensor 2
- DTC P0143 - Ho2S Circuit Voltage Low Bank 1, Sensor 3
- DTC P0144 - Ho2S Circuit High Voltage Bank 1, Sensor 3
- DTC P0146 - Ho2S Insufficient Activity Bank 1, Sensor 3
- DTC P0147 - Ho2S Heater Circuit Bank 1, Sensor 3
- DTC P0151 - Ho2S Circuit Voltage Low Bank 2, Sensor 1
- DTC P0152 - Ho2S Circuit Voltage High Bank 2, Sensor 1
- DTC P0153 - Ho2S Slow Response Bank 2, Sensor 1
- DTC P0154 - Ho2S Insufficient Activity Bank 2, Sensor 1
- DTC P0155 - Ho2S Heater Circuit Bank 2, Sensor 1
- DTC P0157 - Ho2S Circuit Voltage Low Bank 2, Sensor 2
- DTC P0158 - Ho2S Circuit Voltage High Bank 2, Sensor 2
- DTC P0160 - Ho2S Insufficient Activity Bank 2, Sensor 2
- DTC P0161 - Ho2S Heater Circuit Bank 2, Sensor 2
- DTC P0171 - Fuel Trim System Lean Bank 1
- DTC P0172 - Fuel Trim System Rich Bank 1
- DTC P0174 - Fuel Trim System Lean Bank 2
- DTC P0175 - Fuel Trim System Rich Bank 2
- DTC P0300-P0308 - Misfire Detected
- DTC P0325 - Knock Sensor Module Circuit
- DTC P0327 - Knock Sensor Noise Channel Low Voltage
- DTC P0336 - Crankshaft Position Sensor Circuit Performance
- DTC P0337 - Crankshaft Position Sensor Circuit Low Frequency
- DTC P0338 - Crankshaft Position Sensor Circuit High Frequency
- DTC P0339 - Crankshaft Position Sensor Circuit Intermittent
- DTC P0340 - Camshaft Position Sensor Circuit
- DTC P0341 - Camshaft Position Sensor (CMP) Circuit Performance
- DTC P0401 - EGR System Flow Insufficient
- DTC P0404 - EGR Valve Open Pintle Position
- DTC P0405 - EGR Pintle Position Circuit Low Voltage
- DTC P0420 - TWC System Low Efficiency Bank 1
- DTC P0430 - TWC System Low Efficiency Bank 2
- DTC P0440 - EVAP System
- DTC P0442 - EVAP System (Small Leak Detected)
- DTC P0446 - EVAP Canister Vent Valve Performance
- DTC P0452 - Fuel Tank Pressure Sensor Low Voltage
- DTC P0453 - Fuel Tank Pressure Sensor Voltage High
- DTC P0461 - Fuel Level Sensor Circuit Performance
- DTC P0462 - Fuel Level Sensor Circuit Voltage Low
- DTC P0463 - Fuel Level Sensor Circuit Voltage High
- DTC P0500 - Vehicle Speed Sensor Circuit
- DTC P0506 - Idle Control System Low Rpm
- DTC P0507 - Idle Control System High Rpm
- DTC P0601 - VCM Memory
- DTC P0602 - VCM Not Programmed
- DTC P0603 - VCM Memory Reset
- DTC P0604 - VCM Ram Performance
- DTC P0605 - VCM Read Only Memory (ROM)
- DTC P0704 - Clutch Switch Circuit
- DTC P1106 - Map Sensor Circuit Intermittent High Voltage
- DTC P1107 - Map Sensor Circuit Intermittent Low Voltage
- DTC P1111 - IAT Sensor Circuit Intermittent High Voltage
- DTC P1112 - IAT Sensor Circuit Intermittent Low Voltage
- DTC P1114 - ECT Sensor Circuit Intermittent Low Voltage
- DTC P1115 - ECT Sensor Circuit Intermittent High Voltage
- DTC P1121 - TP Sensor Circuit Intermittent High Voltage
- DTC P1122 - TP Sensor Circuit Intermittent Low Voltage
- DTC P1133 - Ho2S Insufficient Switching Bank 1, Sensor 1
- DTC P1134 - Ho2S Transition Time Ratio Bank 1, Sensor 1
- DTC P1153 - Ho2S Insufficient Switching Bank 2, Sensor 1
- DTC P1154 - Ho2S Transition Time Ratio Bank 2, Sensor 1
- DTC P1336 - CKP System Variation Not Learned
- DTC P1345 - Crankshaft/Camshaft Position Sensor Correlation
- DTC P1351 - Ignition Control (Ic) Circuit High Voltage
- DTC P1361 - Ignition Control (Ic) Circuit Low Voltage
- DTC P1381 - Misfire Detected No EBCM/VCM Serial Data
- DTC P1404 - EGR Valve Closed Pintle Position
- DTC P1508 - Idle Air Control System Low Rpm
- DTC P1509 - Idle Air Control System High Rpm
- DTC U1041 - Loss Of EBCM Communication