LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2001 >> Firebird Formula, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 5.7L >> Diagnostic Trouble Code Definitions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Definitions

NOTE: Use of Tech 2 scan tool is required to retrieve DTCs. Refer to user reference manual supplied with scan tool.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC (1) Definition (2) Code Type
BXXXX (3) Body Control DTC N/A
CXXXX (4) Brake/Chassis DTC N/A
P0101  Mass Airflow Sensor Performance B
P0102  Mass Airflow Sensor Circuit Low Frequency B
P0103  Mass Airflow Sensor Circuit High Frequency B
P0106  Manifold Absolute Pressure Sensor Out Of Range B
P0107  Manifold Absolute Pressure Sensor Circuit Low Voltage B
P0108  Manifold Absolute Pressure Sensor Circuit High Voltage B
P0112  Intake Air Temperature Sensor Circuit Low Voltage B
P0113  Intake Air Temperature Sensor Circuit High Voltage B
P0117  Engine Coolant Temperature Sensor Circuit Low Voltage B
P0118  Engine Coolant Temperature Sensor Circuit High Voltage B
P0121  Throttle Position Sensor Circuit Insufficient Activity B
P0122  Throttle Position Sensor Circuit Low Voltage B
P0123  Throttle Position Sensor Circuit High Voltage B
P0125  Engine Coolant Temperature Excessive Time To Enter Closed Loop Fuel Control B
P0128  Engine Coolant Temperature Excessive Time To Reach Operating Temperature B
P0131  HO2S Circuit Voltage Low - Bank 1, Sensor 1 B
P0132  HO2S Circuit Voltage High - Bank 1, Sensor 1 B
P0133  HO2S Slow Response - Bank 1, Sensor 1 B
P0134  HO2S Circuit Insufficient Activity - Bank 1, Sensor 1 B
P0135  HO2S Heater Performance - Bank 1, Sensor 1 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
P0141  HO2S Circuit Insufficient Activity - Bank 1, Sensor 2 B
P0151  HO2S Circuit Low Voltage - Bank 2, Sensor 1 B
P0152  HO2S Circuit High Voltage - Bank 2, Sensor 1 B
P0153  HO2S Slow Response - Bank 2, Sensor 1 B
P0154  HO2S Circuit Insufficient Activity - Bank 2, Sensor 1 B
P0155  HO2S Heater Circuit - Bank 2, Sensor 1 B
P0157  HO2S Circuit Low Voltage - Bank 2, Sensor 2 B
P0158  HO2S Circuit High Voltage - Bank 2, Sensor 2 B
P0160  HO2S Circuit Insufficient Activity - Bank 2, Sensor 2 B
P0161  HO2S Heater Performance - Bank 2, Sensor 2 B
P0171  Fuel Trim System Lean - Bank 1 B
P0172  Fuel Trim System Rich - Bank 1 B
P0174  Fuel Trim System Lean - Bank 2 B
P0175  Fuel Trim System Rich - Bank 2 B
P0200  Injector Control Circuit B
P0218 (5) Transmission Fluid Overtemperature C
P0230  Fuel Pump Relay Control Circuit B
P0300  Engine Misfire Detected B
P0325  Knock Sensor Module Performance B
P0327  Knock Sensor No. 1 Circuit B
P0332  Knock Sensor No. 2 Circuit B
P0335  Crankshaft Position Sensor Circuit B
P0336  Crankshaft Position Sensor Out Of Range B
P0341  Camshaft Position Sensor Out Of Range B
P0342  Camshaft Position Sensor Circuit Low Voltage B
P0343  Camshaft Position Sensor Circuit High Voltage B
P0351  Ignition Coil No. 1 Control Circuit B
P0352  Ignition Coil No. 2 Control Circuit B
P0353  Ignition Coil No. 3 Control Circuit B
P0354  Ignition Coil No. 4 Control Circuit B
P0355  Ignition Coil No. 5 Control Circuit B
P0356  Ignition Coil No. 6 Control Circuit B
P0357  Ignition Coil No. 7 Control Circuit B
P0358  Ignition Coil No. 8 Control Circuit B
P0410  Secondary Air Injection (AIR) System A
P0412  Secondary Air Injection (AIR) Solenoid Control Circuit B
P0418  Secondary Air Injection (AIR) Pump Relay Control Circuit B
P0420  Catalyst System Low Efficiency - Bank 1 A
P0430  Catalyst System Low Efficiency - Bank 2 A
P0440  Evaporative Emission (EVAP) System A
P0442  Evaporative Emission (EVAP) System Small Leak Detected A
P0443  Evaporative Emission (EVAP) Purge Solenoid Control Circuit B
P0446  Evaporative Emission (EVAP) Vent System Performance A
P0449  EVAP Canister Vent Solenoid Valve Control Circuit B
P0452  Fuel Tank Pressure Sensor Circuit Low Voltage B
P0453  Fuel Tank Pressure Sensor Circuit High Voltage B
P0461 (6) Fuel Level Sensor Circuit Performance C
P0462 (6) Fuel Level Sensor Circuit Low Voltage C
P0463 (6) Fuel Level Sensor Circuit High Voltage C
P0480  Cooling Fan No. 1 Relay Control Circuit B
P0481  Cooling Fan No. 2 & 3 Relays Control Circuit B
P0500 (7) Vehicle Speed Sensor Circuit B
P0502 (5) Vehicle Speed Sensor Signal Out Of Range B
P0503 (5) Vehicle Speed Sensor Malfunction B
P0506  Idle Speed Low B
P0507  Idle Speed High B
P0530  A/C Refrigerant Pressure Sensor Circuit C
P0562 (8) System Voltage Low C
P0563 (8) System Voltage High C
P0601-P0607  PCM Internal Malfunction A
P0608 (6) Vehicle Speed Output Circuit C
P0645  A/C Clutch Relay Control Circuit C
P0650  Malfunction Indicator Light (MIL) Control Circuit B
P0704 (9) Clutch Switch Circuit B
P0711 Transmission Fluid Temperature Sensor Malfunction C
P0712 Transmission Fluid Temperature Sensor Circuit Low Input C
P0713 Transmission Fluid Temperature Sensor Circuit High Input C
P0719 (5) TCC Brake Switch Signal Low C
P0724 (5) TCC Brake Switch Signal High C
P0740 (5) TCC Solenoid Valve Circuit Malfunction B
P0742 (5) TCC Malfunction B
P0748 (5) Pressure Control Solenoid Circuit Malfunction C
P0751 (5) 2-2-3-3 Shift Pattern Detected B
P0752 (5) 1-1-4-4 Shift Pattern Detected B
P0753 (5) 1-2 Shift Solenoid Circuit Malfunction B
P0756 (5) 4-3-3-4 Shift Pattern Detected A
P0757 (5) 1-2-2-1 Shift Pattern Detected A
P0758 (5) 2-3 Shift Solenoid Circuit Malfunction A
P0785 (5) 3-2 Shift Solenoid Circuit Malfunction B
P0801 (9) Reverse Inhibit Solenoid Control Circuit C
P0803 (9) Skip Shift Solenoid Control Circuit B
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  HO2S Insufficient Switching - Bank 1, Sensor 1 B
P1134  HO2S Transition Time Ratio - Bank 1, Sensor 1 B
P1153  HO2S Insufficient Switching - Bank 2, Sensor 1 B
P1154  HO2S Transition Time Ratio - Bank 2, Sensor 1 B
P1258  Engine Coolant Overtemperature - Protection Mode Active A
P1336  Crankshaft Position Sensor Variation Not Learned A
P1380  Misfire Detected - Rough Road Data Not Available C
P1381  Misfire Detected - No Communication With Brake Control Module C
P1415  Secondary Air Injection System - Bank 1 A
P1416  Secondary Air Injection System - Bank 2 A
P1441  EVAP System Flow During Non-Purge B
P1539  A/C Clutch Feedback Circuit High Voltage C
P1546  A/C Clutch Feedback Circuit Low Voltage C
P1600  PCM Internal Malfunction A
P1621  PCM Internal Malfunction A
P1626 (10) Theft Deterrent System Fuel Enable Circuit Lost C
P1627  PCM Internal Malfunction A
P1635  5-Volt Reference 1 Circuit B
P1637 (8) Generator "L" Terminal Circuit C
P1639  5-Volt Reference 2 Circuit B
P1680  PCM Internal Malfunction B
P1681  PCM Internal Malfunction B
P1683  PCM Internal Malfunction B
P1810 (5) Invalid TFP Manual Valve Position Switch State B
P1860 (5) TCC PWM Solenoid Valve Circuit Malfunction B
P1870 (5) Excessive TCC Slip When Engaged B
UXXXX (3) Scan Tool Does Not Communicate With Class 2 Device N/A
(1) DTC definitions may vary depending on vehicle and/or engine configuration.
(2) For code type definitions, see CODE TYPES  under SELF-DIAGNOSTIC SYSTEM.
(3) See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
(4) See appropriate ANTI-LOCK/TCS article in BRAKES.
(5) See appropriate ELECTRONIC CONTROLS article in TRANSMISSIONS.
(6) See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.
(7) This procedure applies to M/T vehicles only.
(8) See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
(9) See BORG-WARNER T56 6-SPEED ELECTRONIC CONTROLS article in MANUAL TRANSMISSIONS.
(10) See appropriate ANTI-THEFT SYSTEMS article in ACCESSORIES & EQUIPMENT.
scientia non olet · About LEMON Manuals