| 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 |
| 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 |
| 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 |
| P1713 thru P172 | Transmission system problems |
| P1729 | 4×4 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 | 4×4 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 |
| P1900 | Transmission system problems |
