Pontiac fault codes: probable meanings
Codes specific to Pontiac (often P1xxx, B1xxx, C1xxx, U1xxx). The manufacturer does not publish these meanings: they come from an open database and remain probable. The same code can have another meaning depending on the model or the year.
Codes: 115, from smallest to largest.
| Code | Probable meaning |
|---|---|
| P1031 | HO2S Heater Current Monitor Control Circuit Sensors 1 |
| P1032 | HO2S Heater Warm Up Control Circuit Sensors 1 |
| P1105 | Open Or Shorted Condition Detected In The Baro Read Solenoid Control Circuit |
| P1192 | Inlet Air Temp Circuit Low |
| P1193 | Inlet Air Temp Circuit High |
| P1194 | Incorrect Or Irrational Performance Has Been Detected For The PWM |
| P1195 | O2 Sensor 1/1 (Bank 1 Sensor 1) Slow During Catalyst Monitor |
| P1196 | O2 Sensor 2/1 (Bank 2 Sensor 1) Slow During Catalyst Monitor |
| P1197 | O2 Sensor 1/2 (Bank 1 Sensor 2) Slow During Catalyst Monitor |
| P1198 | Radiator Temperature Sensor Voltage Too High |
| P1199 | Radiator Temperature Sensor Voltage Too Low |
| P1243 | Open Or Shorted Condition Detected In The Turbocharger Surge Valve Solenoid Control |
| P1280 | Open Or Shorted Condition Detected In The Fuel System Relay Control Circuit |
| P1281 | Engine Operating Temp Below Acceptable Range |
| P1282 | Fuel Pump Relay Control Circuit Open Or Shorted |
| P1283 | Idle Select Signal Invalid |
| P1284 | Fuel Injection Pump Battery Voltage Out Of Range |
| P1285 | Fuel Injection Pump Controller Always On |
| P1286 | Accelerator Pedal Position Sensor Supply Voltage Too High |
| P1287 | Fuel Injection Pump Controller Supply Voltage Low |
| P1288 | Intake Manifold Short Runner Solenoid Circuit Open Or Shorted |
| P1289 | Manifold Tune Valve Solenoid Circuit Open Or Shorted |
| P1290 | CNG Fuel Pressure Too High |
| P1291 | No Temp Rise Seen From Fuel Heaters |
| P1292 | CNG Pressure Sensor Voltage Too High |
| P1293 | CNG Pressure Sensor Voltage Too Low |
| P1294 | Target Idle Not Reached |
| P1295 | Loss Of 5 Volts To TP Sensor |
| P1296 | Loss Of 5 Volts To MAP Sensor |
| P1297 | No Change In MAP From Start To Run |
| P1298 | Lean Operation At Wide Open Throttle |
| P1299 | Vacuum Leak Found IAC Fully Seated |
| P1388 | Auto Shutdown ASD Relay Control Circuit Open Or Shorted |
| P1389 | No Auto Shutdown ASD Relay Output Voltage At PCM |
| P1390 | Timing Belt Skipped One Tooth Or More |
| P1391 | Intermittent Loss of CMP Or CKP |
| P1398 | PCM Is Unable To Learn The Crankshaft Position Sensor's Signal |
| P1399 | Wait To Start Lamp Circuit Open Or Shorted |
| P1403 | Loss Of 5 Volts To EGR Sensor |
| P1404 | Exhaust Gas Recirculation System Valve 2 |
| P1405 | Exhaust Gas Recirculation System Valve 3 |
| P1406 | EGR Valve Pintle Position Circuit |
| P1407 | EGR Air Intrusion In Exhaust Supply To EGR Valve |
| P1408 | Intake Manifold Pressure Sensor Circuit |
| P1409 | EGR Vacuum System Leak |
| P1410 | Fuel Tank Pressure System |
| P1415 | Secondary Air Injection AIR System |
| P1416 | AIR System Bank 1 |
| P1418 | Secondary Air Injection System Relay A Control Circuit High |
| P1420 | Intake Air Low Pressure Switch Circuit Low Voltage |
| P1421 | Intake Air Low Pressure Switch Circuit High Voltage |
| P1423 | Intake Air High Pressure Switch Circuit High Voltage |
| P1431 | Fuel Level Sensor 2 Performance |
| P1432 | Fuel Level Sensor 2 Circuit Low Voltage |
| P1433 | Fuel Level Sensor 2 Circuit High Voltage |
| P1441 | Evaporative Emission EVAP System Flow During Non-Purge |
| P1442 | EVAP Vacuum Switch High Voltage During Ignition On |
| P1450 | Barometric Pressure Sensor Circuit |
| P1451 | Barometric Pressure Sensor Performance |
| P1460 | Cooling Fan Control System |
| P1480 | PCV Solenoid Valve Open Or Shorted |
| P1481 | EATX RPM pulse generator signal for misfire detection |
| P1482 | Catalyst Temperature Sensor Circuit Shorted Low |
| P1483 | Catalyst Temperature Sensor Circuit Shorted High |
| P1484 | Catalytic Converter Overheat Detected |
| P1485 | Air Injection Solenoid Circuit Open Or Shorted |
| P1486 | Evap Leak Monitor Pinched Hose |
| P1487 | Hi Speed Rad Fan CTRL Relay Circuit Open Or Shorted |
| P1488 | Auxiliary 5 Volt Supply Output Too Low |
| P1489 | High Speed Fan CTRL Relay Circuit Open Or Shorted |
| P1490 | Low Speed Fan CTRL Relay Circuit Open Or Shorted |
| P1491 | Radiator Fan Control Relay Circuit Open Or Shorted |
| P1492 | Battery Temperature Sensor Voltage Too High |
| P1493 | Battery Temperature Sensor Voltage Too Low |
| P1494 | Leak Detection Pump Switch Or Mechanical Fault |
| P1495 | Leak Detection Pump Solenoid Circuit Open Or Shorted |
| P1496 | 5 Volt Supply Output Too Low |
| P1498 | High speed Rad Fan Ground CTRL Rly Circuit |
| P1499 | Open Or Shorted Condition Detected In The Hydraulic Cooling Fan Solenoid Control |
| P1594 | Charging System Voltage Too High |
| P1595 | Speed Control Solenoid Circuit Open Or Shorted |
| P1596 | Speed Control Switch Always High |
| P1597 | Speed Control Switch Always Low |
| P1598 | A/C Pressure Sensor Voltage Too High |
| P1599 | A/C Pressure Sensor Voltage Too Low |
| P1602 | PCM Not Programmed |
| P1680 | Clutch Released Switch Circuit Open Or Shorted |
| P1681 | No Instrument Panel Cluster CCD J1850 Messages Received |
| P1682 | Charging System Voltage Too Low |
| P1683 | Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted |
| P1684 | Battery Disconnected Within Last 50 Starts |
| P1685 | Skim Invalid Key |
| P1686 | No SKIM Bus Message Received |
| P1687 | No Cluster Bus Message |
| P1688 | Internal Fuel Injection Pump Controller Failure |
| P1689 | No Communication Between ECM & Injection Pump Module |
| P1690 | Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor |
| P1691 | Fuel Injection Pump Controller Calibration Failure |
| P1693 | DTC Detected In ECM Or PCM |
| P1694 | No CCD Messages Received From ECM |
| P1695 | No CCD J1850 Message From BCM |
| P1696 | PCM Failure EEPROM Write Denied |
| P1697 | PCM Failure SRI Mile Not Stored |
| P1698 | No CCD Messages Received From PCM |
| P1699 | No CCD J1850 Messages Received From The Climate Control Module CCM |
| P1719 | Skip Shift Solenoid Circuit Open Or Shorted |
| P1740 | TCC Or OD Solenoid Performance |
| P1756 | Governor Pressure Not Equal To Target At 15-20 PSI |
| P1757 | Governor Pressure Above 3 PSI When Request Is 0 PSI |
| P1762 | Governor Pressure Sensor Offset Improper Voltage |
| P1763 | Governor Pressure Sensor Voltage Too High |
| P1764 | Governor Pressure Sensor Voltage Too Low |
| P1765 | Trans 12 Volt Supply Relay Control Circuit Open Or Shorted |
| P1830 | Open Or Shorted Condition Detected In The Clutch Pedal Switch Over-Ride Relay Control |
| P1899 | Park Neutral Position Switch Stuck In Park or In Gear |
To understand a code on your car (probable causes, what to check first), the DiagAuto AI app explains it using AI. Discover the app
Official meanings: OBDex (public domain, CC0). Manufacturer codes: dtc-database (MIT license), probable meanings not verified by the manufacturers. The same meaning can vary depending on the model: always have a diagnosis confirmed by a professional.