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Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2003 GMC Sonoma and 2003 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: DTCs are retrieved using a Tech 2 scan tool, or other OBD-II compatible scan tool connected to OBD-II 16-pin Data Link Connector (DLC).
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Definition (1) Type
P0105  MAP/TP Sensor Circuit - Insufficient Activity (2)
P0107  MAP Sensor - 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
P0122  TP Sensor Circuit - Low Voltage B
P0123  TP Sensor Circuit - High Voltage B
P0125  ECT Excessive Time To Enter Closed-Loop Fuel Control B
P0128  Engine Coolant Fails To Reach Preset Target Temperature B
P0130  HO2S Circuit (Sensor 1) B
P0131  O2S Circuit - Low Voltage (Sensor 1) B
P0132  O2S Circuit - High Voltage (Sensor 1) B
P0133  O2S Circuit - Slow Response (Sensor 1) B
P0134  O2S Circuit - Insufficient Activity (Sensor 1) B
P0137  HO2S Circuit - Low Voltage (Sensor 2) B
P0138  HO2S Circuit - High Voltage (Sensor 2) B
P0140  HO2S Circuit - Insufficient Activity (Sensor 2)
 B
P0141  HO2S Heater Performance (Sensor 2) B
P0171  Fuel Trim System - Lean B
P0172  Fuel Trim System - Rich B
P0201-P0204  Injector Control Circuit B
P0218 (3) Transmission Fluid Temperature - High C
P0300  Engine Misfire Detected (4)
P0301-P0304  Cylinder Misfire Detected (4)
P0325  Knock Sensor Circuit B
P0336  Crankshaft Position Sensor Circuit B
P0340  Camshaft Position Sensor Circuit - No Activity B
P0341  Camshaft Position Sensor Circuit - Intermittent Signal B
P0410  Secondary Air Injection B
P0420  TWC System - Low Efficiency A
P0440  EVAP System A
P0442  EVAP Control System - Small Leak Detected A
P0446  EVAP Vent System Performance A
P0452  Fuel Tank Pressure Sensor Circuit - Low Voltage A
P0453  Fuel Tank Pressure Sensor Circuit - High Voltage A
P0461 (5) PCM Does Not Detect Change In Fuel Level For 200 Miles C
P0462 (5) Fuel Level Signal Less Than One Percent C
P0502 (3) VSS Circuit B
P0503 (3) VSS Circuit B
P0506  Idle Speed - Low B
P0507  Idle Speed - High B
P0530 (6) A/C Refrigerant Pressure Circuit C
P0562  System Voltage - Low C
P0563  System Voltage - High C
P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683 Or P2610  PCM Memory A
P0621 (7) Generator Circuit C
P0705 (3) Transmission Range Switch Circuit C
P0711 (3) Transmission Fluid Temperature Sensor Circuit C
P0712 (3) Transmission Fluid Temperature Sensor Circuit C
P0713 (3) Transmission Fluid Temperature Sensor Circuit C
P0719 (3) Brake Switch Circuit Closed C
P0724 (3) Brake Switch Circuit Open C
P0740 (3) TCC Solenoid Circuit B
P0742 (3) TCC Solenoid Circuit B
P0748 (3) A/T Pressure Control Solenoid Duty Cycle C
P0751 (3) A/T 1-2 Shift Solenoid Circuit A
P0752 (3) A/T 1-2 Shift Solenoid Stuck On A
P0753 (3) A/T 1-2 Shift Solenoid Circuit B
P0756 (3) A/T 2-3 Shift Solenoid Circuit A
P0758 (3) A/T 2-3 Shift Solenoid Circuit A
P0785 (3) A/T 2-3 Shift Solenoid Circuit A
P1133  HO2S Insufficient Switching (Bank 1; Sensor 1) B
P1137  HO2S Lean System Or Low Voltage (Bank 1; Sensor 2) B
P1138  HO2S High Voltage (Bank 1; Sensor 2) B
P1171  Fuel System Lean During Acceleration C
P1336  Crankshaft Position Sensor Variation Not Learned A
P1441  EVAP System Flow During Non-Purge A
P1626 (8) PCM-To-BCM Communications C
P1631 (8) VTD PassLock(tm) System C
P1632 (8) VTD PassLock(tm) System C
P1810 (3) A/T Fluid Pressure Manual Valve Position Switch State B
P1860 (3) TCC PWM Solenoid Valve Control Circuit B
P1870 (3) PCM Detects Excessive TCC Slip B
UXXXX Communication DTC (9)
(1) See CODE TYPES under ON-BOARD DIAGNOSTICS under SELF-DIAGNOSTIC SYSTEM.
(2) DTC is a type "A" for manual transmission or a type "B" for automatic transmission.
(3) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(4) DTC is type "A" for catalyst failure or a type "B" for emission failure.
(5) See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.
(6) See appropriate A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(7) See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
(8) See appropriate ANTI-THEFT SYSTEMS article in ACCESSORIES & EQUIPMENT.
(9) See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
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