• P0400 Exhaust Gas Recirculation Flow Malfunction • P0401 Exhaust Gas Recirculation Flow Insufficient Detected • P0402 Exhaust Gas Recirculation Flow Excessive Detected • P0403 Exhaust Gas Recirculation Circuit Malfunction • P0404 Exhaust Gas Recirculation Circuit Range/Performance • P0405 Exhaust Gas Recirculation Sensor A Circuit Low • P0406 Exhaust Gas Recirculation Sensor A Circuit High • P0407 Exhaust Gas Recirculation Sensor B Circuit Low • P0408 Exhaust Gas Recirculation Sensor B Circuit High • P0410 Secondary Air Injection System Malfunction • P0411 Secondary Air Injection System Incorrect Flow Detected • P0412 Secondary Air Injection System Switching Valve A Circuit Malfunction • P0413 Secondary Air Injection System Switching Valve A Circuit Open • P0414 Secondary Air Injection System Switching Valve A Circuit Shorted • P0415 Secondary Air Injection System Switching Valve B Circuit Malfunction • P0416 Secondary Air Injection System Switching Valve B Circuit Open • P0417 Secondary Air Injection System Switching Valve B Circuit Shorted • P0418 Secondary Air Injection System Relay ‘A" Circuit Malfunction • P0419 Secondary Air Injection System Relay "B’ Circuit Malfunction • P0420 Catalyst System Efficiency Below Threshold (Bank 1) • P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1) • P0422 Main Catalyst Efficiency Below Threshold (Bank 1) • P0423 Heated Catalyst Efficiency Below Threshold (Bank 1) • P0424 Heated Catalyst Temperature Below Threshold (Bank 1) • P0430 Catalyst System Efficiency Below Threshold (Bank 2) • P0431 Warm Up Catalyst Efficiency Below Threshold (Bank 2) • P0432 Main Catalyst Efficiency Below Threshold (Bank 2) • P0433 Heated Catalyst Efficiency Below Threshold (Bank 2) • P0434 Heated Catalyst Temperature Below Threshold (Bank 2) • P0440 Evaporative Emission Control System Malfunction • P0441 Evaporative Emission Control System Incorrect Purge Flow • P0442 Evaporative Emission Control System Leak Detected (small leak) • P0443 Evaporative Emission Control System Purge Control Valve Circuit • P0444 Evaporative Emission Control System Purge Control Valve Circuit Open • P0445 Evaporative Emission Control System Purge Control Valve Circuit Shorted • P0446 Evaporative Emission Control System Vent Control Circuit Malfunction • P0447 Evaporative Emission Control System Vent Control Circuit Open • P0448 Evaporative Emission Control System Vent Control Circuit Shorted • P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction • P0450 Evaporative Emission Control System Pressure Sensor Malfunction • P0451 Evaporative Emission Control System Pressure Sensor Range/Performance • P0452 Evaporative Emission Control System Pressure Sensor Low Input • P0453 Evaporative Emission Control System Pressure Sensor High Input • P0454 Evaporative Emission Control System Pressure Sensor Intermittent • P0455 Evaporative Emission Control System Leak Detected (gross leak) (FUEL CAP) • P0456 Evaporative Emissions System - Small leak detected (FUEL CAP) • P0457 "" • P0458 "" • P0459 "" • P0460 Fuel Level Sensor Circuit Malfunction • P0461 Fuel Level Sensor Circuit Range/Performance • P0462 Fuel Level Sensor Circuit Low Input • P0463 Fuel Level Sensor Circuit High Input • P0464 Fuel Level Sensor Circuit Intermittent • P0465 Purge Flow Sensor Circuit Malfunction • P0466 Purge Flow Sensor Circuit Range/Performance • P0467 Purge Flow Sensor Circuit Low Input • P0468 Purge Flow Sensor Circuit High Input • P0469 Purge Flow Sensor Circuit Intermittent • P0470 Exhaust Pressure Sensor Malfunction • P0471 Exhaust Pressure Sensor Range/Performance • P0472 Exhaust Pressure Sensor Low • P0473 Exhaust Pressure Sensor High • P0474 Exhaust Pressure Sensor Intermittent • P0475 Exhaust Pressure Control Valve Malfunction • P0476 Exhaust Pressure Control Valve Range/Performance • P0477 Exhaust Pressure Control Valve Low • P0478 Exhaust Pressure Control Valve High • P0479 Exhaust Pressure Control Valve Intermittent • P0480 Cooling Fan I Control Circuit Malfunction • P0481 Cooling Fan 2 Control Circuit Malfunction • P0482 Cooling Fan 3 Control Circuit Malfunction • P0483 Cooling Fan Rationality Check Malfunction • P0484 Cooling Fan Circuit Over Current • P0485 Cooling Fan Power/Ground Circuit Malfunction
DTC Codes - P0500-P0599 – Vehicle Speed Controls and Idle Control System
• P0500 Vehicle Speed Sensor Malfunction • P0501 Vehicle Speed Sensor Range/Performance • P0502 Vehicle Speed Sensor Low Input • P0503 Vehicle Speed Sensor Intermittent/Erratic/High • P0505 Idle Control System Malfunction • P0506 Idle Control System RPM Lower Than Expected • P0507 Idle Control System RPM Higher Than Expected • P0510 Closed Throttle Position Switch Malfunction • P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction • P0521 Engine Oil Pressure Sensor/Switch Circuit Range/Performance • P0522 Engine Oil Pressure Sensor/Switch Circuit Low Voltage • P0523 Engine Oil Pressure Sensor/Switch Circuit High Voltage • P0530 A/C Refrigerant Pressure Sensor Circuit Malfunction • P0531 A/C Refrigerant Pressure Sensor Circuit Range/Performance • P0532 A/C Refrigerant Pressure Sensor Circuit Low Input • P0533 A/C Refrigerant Pressure Sensor Circuit High Input • P0534 Air Conditioner Refrigerant Charge Loss • P0550 Power Steering Pressure Sensor Circuit Malfunction • P0551 Power Steering Pressure Sensor Circuit Range/Performance • P0552 Power Steering Pressure Sensor Circuit Low Input • P0553 Power Steering Pressure Sensor Circuit High Input • P0554 Power Steering Pressure Sensor Circuit Intermittent • P0560 System Voltage Malfunction • P0561 System Voltage Unstable • P0562 System Voltage Low • P0563 System Voltage High • P0565 Cruise Control On Signal Malfunction • P0566 Cruise Control Off Signal Malfunction • P0567 Cruise Control Resume Signal Malfunction • P0568 Cruise Control Set Signal Malfunction • P0569 Cruise Control Coast Signal Malfunction • P0570 Cruise Control Accel Signal Malfunction • P0571 Cruise Control/Brake Switch A Circuit Malfunction • P0572 Cruise Control/Brake Switch A Circuit Low • P0573 Cruise Control/Brake Switch A Circuit High • P0574 Cruise Control Related Malfunction • P0575 Cruise Control Related Malfunction • P0576 Cruise Control Related Malfunction • P0576 Cruise Control Related Malfunction • P0578 Cruise Control Related Malfunction • P0579 Cruise Control Related Malfunction • P0580 Cruise Control Related Malfunction
DTC Codes - P0600-P0699 – Computer Output Circuit
• P0600 Serial Communication Link Malfunction • P0601 Internal Control Module Memory Check Sum Error • P0602 Control Module Programming Error • P0603 Internal Control Module Keep Alive Memory (KAM) Error • P0604 Internal Control Module Random Access Memory (RAM) Error • P0605 Internal Control Module Read Only Memory (ROM) Error • P0606 PCM Processor Fault • P0608 Control Module VSS Output "A’ Malfunction • P0609 Control Module VSS Output "B" Malfunction • P0620 Generator Control Circuit Malfunction • P0621 Generator Lamp "L" Control Circuit Malfunction • P0622 Generator Field "F" Control Circuit Malfunction • P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction • P0654 Engine RPM Output Circuit Malfunction • P0655 Engine Hot Lamp Output Control Circuit Malfunction • P0656 Fuel Level Output Circuit Malfunction
DTC Codes - P0700-P0899 – Transmission
• P0700 Transmission Control System Malfunction • P0701 Transmission Control System Range/Performance • P0702 Transmission Control System Electrical • P0703 Torque Converter/Brake Switch B Circuit Malfunction • P0704 Clutch Switch Input Circuit Malfunction • P0705 Transmission Range Sensor Circuit malfunction (PRNDL Input) • P0706 Transmission Range Sensor Circuit Range/Performance • P0707 Transmission Range Sensor Circuit Low Input • P0708 Transmission Range Sensor Circuit High Input • P0709 Transmission Range Sensor Circuit Intermittent • P0710 Transmission Fluid Temperature Sensor Circuit Malfunction • P0711 Transmission Fluid Temperature Sensor Circuit Range/Performance • P0712 Transmission Fluid Temperature Sensor Circuit Low Input • P0713 Transmission Fluid Temperature Sensor Circuit High Input • P0714 Transmission Fluid Temperature Sensor Circuit Intermittent • P0715 Input/Turbine Speed Sensor Circuit Malfunction • P0716 Input/Turbine Speed Sensor Circuit Range/Performance • P0717 Input/Turbine Speed Sensor Circuit No Signal • P0718 Input/Turbine Speed Sensor Circuit Intermittent • P0719 Torque Converter/Brake Switch B Circuit Low • P0720 Output Speed Sensor Circuit Malfunction • P0721 Output Speed Sensor Range/Performance • P0722 Output Speed Sensor No Signal • P0723 Output Speed Sensor Intermittent • P0724 Torque Converter/Brake Switch B Circuit High • P0725 Engine Speed input Circuit Malfunction • P0726 Engine Speed Input Circuit Range/Performance • P0727 Engine Speed Input Circuit No Signal • P0728 Engine Speed Input Circuit Intermittent • P0730 Incorrect Gear Ratio • P0731 Gear I Incorrect ratio • P0732 Gear 2 Incorrect ratio • P0733 Gear 3 Incorrect ratio • P0734 Gear 4 Incorrect ratio • P0735 Gear 5 Incorrect ratio • P0736 Reverse incorrect gear ratio • P0740 Torque Converter Clutch Circuit Malfunction • P0741 Torque Converter Clutch Circuit Performance or Stuck Off • P0742 Torque Converter Clutch Circuit Stock On • P0743 Torque Converter Clutch Circuit Electrical • P0744 Torque Converter Clutch Circuit Intermittent • P0745 Pressure Control Solenoid Malfunction • P0746 Pressure Control Solenoid Performance or Stuck Off • P0747 Pressure Control Solenoid Stuck On • P0748 Pressure Control Solenoid Electrical • P0749 Pressure Control Solenoid Intermittent • P0750 Shift Solenoid A Malfunction • P0751 Shift Solenoid A Performance or Stuck Off • P0752 Shift Solenoid A Stuck On • P0753 Shift Solenoid A Electrical • P0754 Shift Solenoid A Intermittent • P0755 Shift Solenoid B Malfunction • P0756 Shift Solenoid B Performance or Stock Off • P0757 Shift Solenoid B Stuck On • P0758 Shift Solenoid B Electrical • P0759 Shift Solenoid B Intermittent • P0760 Shift Solenoid C Malfunction • P0761 Shift Solenoid C Performance or Stuck Off • P0762 Shift Solenoid C Stuck On • P0763 Shift Solenoid C Electrical • P0764 Shift Solenoid C Intermittent • P0765 Shift Solenoid D Malfunction • P0766 Shift Solenoid D Performance or Stuck Off • P0767 Shift Solenoid D Stuck On • P0768 Shift Solenoid D Electrical • P0769 Shift Solenoid D Intermittent • P0770 Shift Solenoid E Malfunction • P0771 Shift Solenoid E Performance or Stuck Off • P0772 Shift Solenoid E Stuck On • P0773 Shift Solenoid E Electrical • P0774 Shift Solenoid E Intermittent • P0780 Shift Malfunction • P0781 1-2 Shift Malfunction • P0782 2-3 Shift Malfunction • P0783 3-4 Shift Malfunction • P0784 4-5 Shift Malfunction • P0785 Shift/Timing Solenoid Malfunction • P0786 Shift/Timing Solenoid Range/Performance • P0787 Shift/Timing Solenoid Low • P0788 Shift/Timing Solenoid High • P0789 Shift/Timing Solenoid Intermittent • P0790 Normal/Performance Switch Circuit Malfunction • P0801 Reverse Inhibit Control Circuit Malfunction • P0803 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction • P0804 1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction
GM-Specific P-Codes
• P1000 OBD-II Monitor Testing Incomplete. • P1001 KOER Test Cannot Be Completed. • P1039 Vehicle Speed Signal Missing or Improper. • P1051 Brake Switch Signal Missing or Improper. • P1100 Mass Air Flow Sensor Intermittent. • P1101 Mass Air Flow Sensor out of Self-Test Range. • P1112 Intake Air Temperature Sensor Intermittent.' • P1116 Engine Coolant Temperature Sensor is out of Self-Test Range. • P1117 Engine Coolant Temperature Sensor Intermittent. • P1120 Throttle Position Sensor out of range. • P1121 Throttle Position Sensor Inconsistent with Mass Air Flow Sensor. • P1124 Throttle Position Sensor out of Self-Test Range. • P1125 Throttle Position Sensor Intermittent. • P1127 Heated Oxygen Sensor Heater not on During KOER Test. • P1128 Heated Oxygen Sensor Signals reversed. • P1129 Heated Oxygen Sensor Signals reversed. • P1130 Lack of Upstream Heated Oxygen Sensor Switch - Adaptive Fuel Limit - Bank No. 1. • P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1. • P1132 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 1. • P1135 Ignition Switch Signal Missing or Improper. • P1137 Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1. • P1138 Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 1. • P1150 Lack of Upstream Heated Oxygen Sensor Switch - Adaptive Fuel Limit - Bank No. 2. • P1151 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 2. • P1152 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 2. • P1157 Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 2. • P1158 Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 2. • P1220 Series Throttle Control fault. • P1224 Throttle Position Sensor B out of Self-Test Range. • P1230 Open Power to Fuel Pump circuit. • P1231 High Speed Fuel Pump Relay activated. • P1232 Low Speed Fuel Pump Primary circuit failure. • P1233 Fuel Pump Driver Module off-line. • P1234 Fuel Pump Driver Module off-line. • P1235 Fuel Pump Control out of range. • P1236 Fuel Pump Control out of range. • P1237 Fuel Pump Secondary circuit fault. • P1238 Fuel Pump Secondary circuit fault. • P1250 Lack of Power to FPRC Solenoid. • P1260 Theft Detected - Engine Disabled. • P1270 Engine RPM or Vehicle Speed Limiter Reached. • P1288 Cylinder Head Temperature Sensor out of Self-Test Range. • P1289 Cylinder Head Temperature Sensor Signal Greater Than Self Test Range. • P1290 Cylinder Head Temperature Sensor Signal Less Than Self-Test Range. • P1299 Cylinder Head Temperature Sensor Detected Engine Overheating Condition. • P1309 Misfire Detection Monitor not enabled. • P1351 Ignition Diagnostic Monitor circuit Input fault. • P1352 Ignition Coil A - Primary circuit fault. • P1353 Ignition Coil B - Primary circuit fault. • P1354 Ignition Coil C - Primary circuit fault. • P1355 Ignition Coil D - Primary circuit fault. • P1356 Loss of Ignition Diagnostic Module Input to PCM. • P1358 Ignition Diagnostic Monitor Signal out of Self-Test Range. • P1359 Spark Output circuit fault. • P1364 Ignition Coil Primary circuit fault. • P1380 VCT Solenoid Valve circuit Short or Open. • P1381 Cam Timing Advance is excessive. • P1383 Cam Timing Advance is excessive. • P1390 Octane Adjust out of Self-Test Range. • P1400 Differential Pressure Feedback Electronic Sensor circuit Low Voltage. • P1401 Differential Pressure Feedback Electronic Sensor circuit High Voltage. • P1403 Differential Pressure Feedback Electronic Sensor Hoses Reversed. • P1405 Differential Pressure Feedback Electronic Sensor circuit Upstream Hose. • P1406 Differential Pressure Feedback Electronic Sensor circuit Downstream Hose. • P1407 EGR No Flow Detected. • P1408 EGR Flow out of Self-Test Range. • P1409 EGR Vacuum Regulator circuit malfunction. • P1410 EGR Barometric Pressure Sensor VREF Voltage. • P1409 Electronic Vacuum Regulator Control circuit fault. • P1411 Secondary Air is not being diverted. • P1413 Secondary Air Injection System Monitor circuit Low Voltage. • P1414 Secondary Air Injection System Monitor circuit High Voltage. • P1442 Secondary Air Injection System Monitor circuit High Voltage. • P1443 Evaporative Emission Control System - Vacuum System -Purge Control Solenoid or Purge Control Valve fault. • P1444 Purge Flow Sensor circuit Input Low. • P1445 Purge Flow Sensor circuit Input High. • P1450 Inability of Evaporative Emission Control System to Bleed Fuel Tank. • P1451 Lack of Response From Passive Anti-Theft System Module - Engine Disabled. • P1452 Inability of Evaporative Emission Control System to Bleed Fuel Tank. • P1455 Substantial Leak or Blockage in Evaporative Emission Control System. • P1460 Wide Open Throttle Air Conditioning Cutoff circuit malfunction. • P1461 Air Conditioning Pressure Sensor circuit Low Input. • P1462 Air Conditioning Pressure Sensor circuit high Input. • P1463 Air Conditioning Pressure Sensor Insufficient Pressure change. • P1464 ACCS to PCM High During Self-Test. • P1469 Low Air Conditioning Cycling Period. • P1473 Fan Secondary High with Fans Off. • P1474 Low Fan Control Primary circuit. • P1479 High Fan Control Primary circuit. • P1480 Fan Secondary Low with Low Fans On. • P1481 Fan Secondary Low with High Fans On. • P1483 Power to Cooling Fan Exceeded Normal Draw. • P1484 Variable Load Control Module Pin 1 Open. • P1500 Vehicle Speed Sensor Intermittent. • P1501 Programmable Speedometer & Odometer Module/Vehicle Speed Sensor Intermittent circuit-failure. • P1502 Invalid or Missing Vehicle Speed Message or Brake Data. • P1504 Intake Air Control circuit malfunction. • P1505 Idle Air Control System at Adaptive Clip. • P1506 Idle Air Control Over Speed Error. • P1507 Idle Air Control Under Speed Error. • P1512 Intake Manifold Runner Control Stuck Closed. • P1513 Intake Manifold Runner Control Stuck Closed. • P1516 Intake Manifold Runner Control Input Error. • P1517 Intake Manifold Runner Control Input Error. • P1518 Intake Manifold Runner Control fault - Stuck Open. • P1519 Intake Manifold Runner Control Stuck Open. • P1520 Intake Manifold Runner Control circuit fault. • P1519 Intake Manifold Runner Control fault - Stuck Closed. • P1520 Intake Manifold Runner Control fault. • P1530 Open or Short to A/C Compressor Clutch circuit. • P1537 Intake Manifold Runner Control Stuck Open. • P1538 Intake Manifold Runner Control Stuck Open. • P1539 Power to A/C Compressor Clutch circuit Exceeded Normal Current Draw. • P1549 Intake Manifold Temperature Valve Vacuum Actuator Connection. • P1550 Power Steering Pressure Sensor out of Self-Test Range. • P1605 PCM Keep Alive Memory Test Error. • P1625 Voltage to Vehicle Load Control Module Fan circuit not detected. • P1626 Voltage to Vehicle Load Control Module circuit not detected. • P1650 Power Steering Pressure Switch out of Self-Test Range. • P1651 Power Steering Pressure Switch Input fault. • P1700 Transmission system problems. • P1701 Reverse Engagement Error. • P1702 Transmission system problems. • P1703 Brake On/Off Switch out of Self-Test Range. • P1704 Transmission system problems. • P1705 Manual Lever Position Sensor out of Self-Test Range. • P1709 Park or Neutral Position Switch out of Self-Test Range. • P1710 Transmission system problems. • P1711 Transmission Fluid Temperature Sensor out of Self-Test Range. • P1728 Transmission system problems. • P1729 4x4 Low Switch Error. • P1740 Transmission system problems. • P1741 Torque Converter Clutch Control Error. • P1742 Torque Converter Clutch Solenoid Faulty. • P1743 Torque Converter Clutch Solenoid Faulty. • P1744 Torque Converter Clutch System Stuck in Off Position. • P1745 Transmission system problems. • P1746 Electronic Pressure Control Solenoid - Open circuit. • P1747 Electronic Pressure Control Solenoid - Short circuit. • P1749 Electronic Pressure Control Solenoid Failed Low. • P1751 Shift Solenoid No. 1 Performance. • P1754 Coast Clutch Solenoid circuit malfunction. • P1756 Shift Solenoid No. 2 Performance. • P1760 Transmission system problems. • P1761 Shift Solenoid No. 3 Performance. • P1762 Transmission system problems. • P1767 Transmission system problems. • P1780 Transmission Control Switch circuit is out of Self-Test Range. • P1781 4x4 Low Switch is out of Self-Test Range. • P1783 Transmission Over-Temperature Condition. • P1784 Transmission system problems. • P1785 Transmission system problems. • P1786 Transmission system problems. • P1787 Transmission system problems. • P1788 Transmission system problems. • P1789 Transmission system problems. • P1870 Transmission system problems. • P1900 Transmission system problems.
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