Category: Chevrolet

P1479 Chevrolet High Fan Control Primary Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1469 Chevrolet Low A/C Cycling Period Possible causes Mechanical A/C system concern (such as low refrigerant charge, damaged A/C cycling switch). Intermittent open between the cycling pressure switch and the PCM. Intermittent open in the IGN RUN circuit to cycling pressure switch (if applicable). Symptoms – Engine Light ON (or Service Engine Soon Warning Light)…

P1470 Chevrolet A/C Cycling Period Too Short Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1471 Chevrolet Electrodrive Fan 1 Operational Failure (Driver Side) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1472 Chevrolet Electrodrive Fan 2 Operational Failure (Passenger Side) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1473 Chevrolet Fan Secondary High With Fan(s) Off Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1468 Chevrolet SSPOD Open Circuit or Closed Circuit Fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1465 Chevrolet A/C Relay Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1466 Chevrolet A/C Refrigerant Temperature Sensor/Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1467 Chevrolet A/C Compressor Temperature Sensor Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1461 Chevrolet A/C pressure sensor circuit voltage low Possible causes ACP sensor circuit short to PWR. ACP circuit open. Damaged PCM. ACP circuit short to VREF. ACP circuit short to SIGRTN. Damaged ACP sensor. Tech description Verify a VREF voltage between 4 and 6 volts. Symptoms – Engine Light ON (or Service Engine Soon Warning…

P1462 Chevrolet A/C pressure sensor circuit voltage high Possible causes ACP circuit short to GND or SIGRTN. VREF circuit open. Damaged PCM. Open ACP circuit. Damaged ACP sensor. Tech description Verify a VREF voltage between 4 and 6 volts. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1462 Chevrolet Description The ACP…

P1463 Chevrolet A/C Pressure Sensor Insufficient Pressure Change Possible causes A/C system mechanical failure. Open ACP or VREF circuit. A/C sensor damaged. A/C system electrical failure. A/C clutch always engaged. Tech description Verify the A/C system function, including refrigerant charge. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1463 Chevrolet Description Each…

P1464 Chevrolet Fuel Level Sensor Possible causes – Harness or connectors(The sensor circuit is open or shorted) – Fuel level sensor What about the obd code? – A high voltage from the sensor is sent to ECM Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1464 Chevrolet Description The fuel level sensor…

P1457 Chevrolet Evaporative Emissions Control System Leakage EVAP Canister System Possible causes – Missing Fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap What about the obd code? The P1457 Chevrolet code is detected when the EVAP system has a very…

P1458 Chevrolet A/C Switch Malfunction

P1459 Chevrolet Evaporative Emission (EVAP) Purge Flow Switch Malfunction

P1460 Chevrolet Wide open throttle A/C cutoff relay circuit Possible causes Open or shorted WAC circuit. Damaged WAC relay (or CCRM). Open VPWR circuit to the WAC relay. Damaged PCM. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1460 Chevrolet Description Monitors the wide open throttle A/C cutoff (WAC) circuit output from…

P1453 Chevrolet Fuel Tank Pressure Relief Valve Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1454 Chevrolet Fuel Tank Pressure (FTP) Sensor Range/Performance Problem