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Diagnostic Trouble Code Definitions

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Sonoma, 2003 GMC Safari, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE INDEX

DTC (1) Description (2) Code Type
BXXXX (3) Body Control Systems Malfunction N/A
CXXXX (3) Chassis Control System Malfunction N/A
P0016  Crankshaft Position-To-Camshaft Position Correlation (Bank 1, Sensor 1) B
P0101  Mass Airflow Sensor Performance B
P0102  MAF Sensor Circuit - Low Frequency B
P0103  MAF Sensor Circuit - High Frequency B
P0106  MAP System Performance B
P0107  MAP Sensor Circuit - Low Voltage B
P0108  MAP Sensor Circuit - High Voltage B
P0112  IAT Sensor Circuit - Low Voltage B
P0113  IAT Sensor Circuit - High Voltage B
P0117  ECT Sensor Circuit - Low Voltage B
P0118  ECT Sensor Circuit - High Voltage B
P0121  TP Sensor Performance B
P0122  TP Sensor Circuit - Low Voltage B
P0123  TP Sensor Circuit - High Voltage B
P0125  Excess Time To Enter Closed Loop Fuel Control B
P0128  ECT Less Than Thermostat Regulating Temperature B
P0131 Or P0151  HO2S Circuit - Low Voltage (Bank 1 & 2, Sensor 1) B
P0132 Or P0152  HO2S Circuit - High Voltage (Bank 1 & 2, Sensor 1) B
P0133 Or P0153  HO2S Circuit - Slow Response (Bank 1 & 2, Sensor 1) B
P0134 Or P0154  HO2S Circuit - Insufficient Activity (Bank 1 & 2, Sensor 1) B
P0135, P0141 OR P0155  HO2S Heater Circuit (Bank 1 & 2, Sensor 1 & 2) B
P0137  HO2S Circuit - Low Voltage (Bank 1, Sensor 2) B
P0138  HO2S Circuit - High Voltage (Bank 1, Sensor 2) B
P0140  HO2S Circuit - Insufficient Activity (Bank 1, Sensor 2) B
P0171 Or P0174  Fuel Trim System Lean (Bank 1 & 2) B
P0172 Or P0175  Fuel Trim System Rich (Bank 1 & 2) B
P0200  Fuel Injector Control Circuit B
P0218 (4) Transmission Fluid Overtemperature C
P0230  Fuel Pump Control Relay Circuit B
P0300  Engine Misfire Detected B
P0315  Crankshaft Position System Variation Not Learned A
P0325  Knock Sensor Module Circuit B
P0327  Knock Sensor Circuit - Low Voltage B
P0335  Crankshaft Position Sensor Circuit B
P0336  Crankshaft Position Sensor Circuit Performance B
P0341  Camshaft Position Sensor Circuit Performance B
P0351  Ignition Control Circuit B
P0420 Or P0430  TWC System - Low Efficiency (Bank 1 & 2) A
P0442  EVAP System - Small Leak A
P0443  EVAP Purge Solenoid Control Circuit B
P0446  EVAP Vent Valve Performance A
P0449  EVAP Vent Valve Performance B
P0452  Fuel Tank Pressure Sensor - Low Voltage B
P0453  Fuel Tank Pressure Sensor - High Voltage B
P0455  Evaporative Emission Control System Leak Detected (Gross Leak/No Flow) A
P0461 (5) Fuel Level Sensor Circuit Performance C
P0462 (5) Fuel Level Sensor Circuit - Low Voltage C
P0463 (5) Fuel Level Sensor Circuit - High Voltage C
P0496  Evaporative Emission System High Purge Flow B
P0500  Vehicle Speed Sensor ("S" & "T" Series With M/T Only) B
P0502  Vehicle Speed Sensor Low Output (A/T) B
P0503  Vehicle Speed Sensor Erratic (A/T) B
P0506  Idle Control System - Low RPM B
P0507  Idle Control System - RPM High B
P0562 (6) Low System Voltage C
P0563 (6) High System Voltage C
P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683 Or P2610  PCM Memory A
P0608 (5) Vehicle Speed Output Circuit C
P0609 (7) Control Module VSS Output "B" Circuit C
P0621 (6) Generator "L" Terminal Circuit C
P0641  5-Volt Reference Voltage Out-Of-Range B
P0650  MIL Control Circuit B
P0651  Sensor Reference Voltage "B" Circuit Open B
P0654 (5) Engine Speed Output Circuit C
P0704 (8) Clutch Switch Input Circuit B
P0706 (4) Transmission Range Switch C
P0711 (4) TFT Sensor Circuit - Range/Performance C
P0712 (4) TFT Sensor Circuit - Low Input C
P0713 (4) TFT Sensor Circuit - High Input C
P0719 (4) Brake Switch 2 Circuit - Low Voltage C
P0724 (4) Brake Switch 2 Circuit - High Voltage C
P0740 (4) TCC Circuit B
P0741 (4) TCC System - Stuck Off B
P0742 (4) TCC System - Stuck On B
P0748 (4) Pressure Control Solenoid Circuit - Electrical Malfunction B
P0751 (4) 1-2 Shift Solenoid Valve Performance B
P0752 (4) 1-2 Shift Solenoid Valve Performance - No 2nd Or 3rd Gear B
P0753 (4) 1-2 Shift Solenoid Circuit - Electrical Malfunction B
P0756 (4) 2-3 Shift Solenoid Valve Performance A
P0757 (4) 2-3 Shift Solenoid Valve Performance - No 3rd Or 4th Gear A
P0758 (4) 2-3 Shift Solenoid Circuit - Electrical Malfunction A
P0785 (4) 3-2 Shift Solenoid Circuit - Electrical Malfunction B
P0894 (4) Transmission Component Slipping B
P1106  MAP Sensor Circuit - Intermittent High Voltage C
P1107  MAP Sensor Circuit - Intermittent Low Voltage C
P1111  IAT Sensor Circuit - Intermittent High Voltage C
P1112  IAT Sensor Circuit - Intermittent Low Voltage C
P1114  ECT Sensor Circuit - Intermittent Low Voltage C
P1115  ECT Sensor Circuit - Intermittent High Voltage C
P1121  TP Sensor Circuit - Intermittent High Voltage C
P1122  TP Sensor Circuit - Intermittent Low Voltage C
P1133 Or P1153  HO2S Circuit - Insufficient Switching (Bank 1 & 2, Sensor 1) B
P1380  EBCM DTC Detected Rough Road Data Unstable C
P1381  Misfire Detected - No EBCM/PCM Serial Data C
P1626 (9) Theft Deterrent System Loss Of Serial Communication C
P1631 (9) Theft Deterrent System Password Incorrect C
P1637 (6) Generator Turn-On Signal Circuit Voltage Out Of Range C
P1638 (6) Pulse Width Modulated Signal Out Of Range C
P1810 (4) TFP Manual Valve Position Switch - Circuit Malfunction B
P1860 (4) TCC PWM Solenoid Circuit - Electrical Malfunction B
P1870 (4) Transmission Component Slipping ("S" & "T" Series only) B
P1875 (4) 4WD Low Switch Circuit - Electrical Malfunction ("S" & "T" Series only) B
UXXXX (3) Network Communication System Malfunction N/A
(1) DTC definitions may vary depending on vehicle and/or engine configuration.
(2) See CODE TYPES  under ON-BOARD DIAGNOSTICS.
(3) See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
(4) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(5) See appropriate ANALOG INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.
(6) See appropriate GENERATORS & REGULATORS article in ELECTRICAL.
(7) See appropriate ANTI-LOCK article in BRAKES.
(8) See appropriate DIAGNOSIS article in MANUAL TRANSMISSIONS.
(9) See appropriate ANTI-THEFT SYSTEMS article in ACCESSORIES & EQUIPMENT.
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