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 P1353 - Ignition Coil B - Primary circuit fault P1354 - Ignition Coil C - Primary circuit fault P1355 - Ignition Coil D - Primary circuit fault
2. 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 P1409? - Electronic Vacuum Regulator Control circuit fault P1410 - EGR Barometric Pressure Sensor VREF Voltage 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 - EVAP Control System Canister Vent Solenoid Circuit Malfunction 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
3. 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
4. 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 P1713 thru P172 - 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
5. P1785 - Transmission system problems P1786 - Transmission system problems P1787 - Transmission system problems P1788 - Transmission system problems P1789 - Transmission system problems P1900 - Transmission system problems 
