Category: OBDii Powertrain Codes

P1469 Low A/C Cycling Period

P1469 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) P1469…

P1462 A/C pressure sensor circuit voltage high

P1462 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 Description The ACP inputs a…

P1463 A/C Pressure Sensor Insufficient Pressure Change

P1463 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 Description Each time the…

P1464 Fuel Level Sensor

P1464 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 Description The fuel level sensor is mounted…

P1456 Evaporative Emission Control System Leak Detected Small Leak

P1456 Evaporative Emission Control System Leak Detected Small Leak 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– Incorrect fuel tank vacuum relief valve– Leak is in line between intake manifold and EVAP canister purge volume control…