GM Service Manual Online
For 1990-2009 cars only

Diagnostic Trouble Codes (DTC) List/Type

Description

Domestic RPO LB8

Domestic RPO L46

Export Unleaded Fuel

DTC P0101 Mass Air Flow (MAF) Sensor Performance

B

B

--

DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency

B

B

--

DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency

B

B

--

DTC P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage

B

B

--

DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

B

B

--

DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage

B

B

--

DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage

B

B

--

DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

B

B

--

DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage

B

B

--

DTC P0121 Throttle Position (TP) Sensor Performance

B

B

--

DTC P0122 Throttle Position (TP) Sensor Circuit Low Voltage

B

B

--

DTC P0123 Throttle Position (TP) Sensor Circuit High Voltage

B

B

--

DTC P0131 HO2S Circuit Low Voltage Sensor 1

B

B

--

DTC P0132 HO2S Circuit High Voltage Sensor 1

B

B

--

DTC P0133 HO2S Slow Response Sensor 1

B

B

--

DTC P0134 HO2S Circuit Insufficient Activity Sensor 1

B

B

--

DTC P0171 Fuel Trim System Lean

B

B

--

DTC P0172 Fuel Trim System Rich

B

B

--

DTC P0201 Injector 1 Control Circuit

B

B

--

DTC P0202 Injector 2 Control Circuit

B

B

--

DTC P0203 Injector 3 Control Circuit

B

B

--

DTC P0204 Injector 4 Control Circuit

B

B

--

DTC P0205 Injector 5 Control Circuit

B

B

--

DTC P0206 Injector 6 Control Circuit

B

B

--

DTC P0230 Fuel Pump Relay Control Circuit

C

C

--

DTC P0300 Engine Misfire Detected

B

B

--

DTC P0325 Knock Sensor (KS) Circuit

B

B

--

DTC P0327 Knock Sensor (KS) Circuit

B

B

--

DTC P0336 Crankshaft Position (CKP) Sensor Circuit

B

B

--

DTC P0341 Camshaft Position (CMP) Sensor Performance

B

B

--

DTC P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient

A

-

--

DTC P0403 Exhaust Gas Recirculation (EGR) Solenoid Control Circuit

B

B

--

DTC P0404 Exhaust Gas Recirculation (EGR) Open Position Performance

B

B

--

DTC P0405 Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage

B

B

--

DTC P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit

B

B

--

DTC P0480 Cooling Fan Relay 1 Control Circuit

B

B

--

DTC P0481Cooling Fan Relay 2 Control Circuit

B

B

--

DTC P0506 Idle Speed Low

B

B

--

DTC P0507 Idle Speed High

B

B

--

DTC P0530 Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit

C

C

--

DTC P0560 System Voltage

C

C

--

DTC P0601 Control Module Read Only Memory (ROM)

A

A

--

DTC P0602 Control Module Not Programmed

A

A

--

DTC P0620 Generator Performance

C

-

--

DTC P0650 Malfunction Indicator Lamp (MIL) Control Circuit

A

B

--

DTC P1106 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage

C

C

--

DTC P1107 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage

C

C

--

DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage

C

C

--

DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage

C

C

--

DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage

C

C

--

DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage

C

C

--

DTC P1121 Throttle Position (TP) Sensor Circuit Intermittent High Voltage

C

C

--

DTC P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage

C

C

--

DTC P1189 Engine Oil Pressure (EOP) Switch Circuit

C

-

--

DTC P1336 Crankshaft Position (CKP) System Variation Not Learned

A

A

--

DTC P1351 Ignition Coil Control Circuit High Voltage

B

B

--

DTC P1352 Ignition Bypass Circuit High Voltage

B

B

--

DTC P1361 Ignition Control (IC) Circuit Low Voltage

B

B

--

DTC P1362 Ignition Bypass Circuit Low Voltage

B

B

--

DTC P1374 Crankshaft Position (CKP) High to Low Resolution Frequency Correlation

B

B

--

DTC P1404 Exhaust Gas Recirculation (EGR) Closed Position Performance

A

A

--

DTC P1546 Air Conditioning (A/C) Clutch Relay Control Circuit

C

C

--

DTC P1602 Lost Communications with Brake/Traction Control (EBTCM) System

C

C

--

DTC P1605 Lost Communications with HVAC Control System

C

C

--

DTC P1610 Lost Communications with Body Multiple Control (BCM) System

C

C

--

DTC P1626 Theft Deterrent Fuel Enable Signal Lost

C

C

--

DTC P1630 Theft Deterrent Learn Mode Active

C

C

--

DTC P1631 Theft Deterrent Start Enable Signal Not Correct

C

C

--

DTC P1635 5 Volt Reference Circuit

B

B

--

DTC P1639 5 Volt Reference 2 Circuit

B

B

--