Category: OBDii Powertrain Codes

P1542 A/C System High Pressure High Temperature

P1543 A/C System Performance

P1538 A/C request Circuit High Voltage

P1539 Air Conditioning Clutch Feedback Circuit High Voltage

P1540 Vehicle Speed Sensor Malfunction Possible causes – Faulty Vehicle Speed Sensor– Vehicle Speed Sensor harness is open or shorted– Vehicle Speed Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1540 Description The Vehicle Speed Sensor 1 (Output Shaft Rotation Sensor) is mounted to the extension case…

P1532 A/C Evaporator Temperature Sensor Circuit Low Voltage

P1533 A/C Evaporator Temperature Sensor Circuit High Voltage

P1534 A/C High Side Temperature Sensor Low Voltage

P1535 A/C High Side Temperature Sensor Circuit

P1536 A/C System – ECT Overtemperature

P1537 A/C Request Circuit Low Voltage

P1525 Throttle Body Service Required

P1526 Minimum Throttle Position Not Learned

P1527 Transmission Range/Pressure Switch Comparison

P1528 Governor

P1529 Transmission Control Unit Request for MIL On Possible causes – Check for transmission codes. Tech description The code means that there is a problem with transmission. The Transmission Control Module (TCM) sends a signal to the Engine Control Module (ECM) to turn the engine light ON. Check the Transmission Control Module (TCM) for codes….

P1530 A/C Clutch Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1531 A/C Low Side Temerature Sensor Fault

P1519 Electronic Throttle Module Low Volts Communication Disable

P1520 Transmission Range Switch Circuit