DTC P1460: A/C Clutch Relay (A/CCR) Primary Circuit Malfunction (also referred to as WAC circuit)
P1460 - A/C CLUTCH RELAY (A/CCR) PRIMARY CIRCUIT MALFUNCTION (ALSO REFERRED TO AS WAC CIRCUIT)
| Description: | Monitors the wide open throttle A/C cutoff (WAC) circuit output from the powertrain control module (PCM). The test fails when the PCM grounds the WAC circuit, excessive current draw is detected on the WAC circuit; or, with the WAC circuit not grounded by the PCM, voltage is not detected on the WAC circuit (the PCM expects to detect VPWR voltage coming through the WAC relay coil to the WAC circuit). | ||
| Possible Causes: |
|
||
| Diagnostic Aids: | The A/CCR control circuit can be monitored using the WACF and WAC PID. When the WACF PID reads YES, a fault is present. An open circuit or short to ground can only be detected when the PCM is not grounding the circuit. A short to voltage can only be detected when the PCM is grounding the circuit. During the KOEO and KOER self-test, the WAC circuit is cycled on and off. Verify the A/C and the defrost were off during key on engine off (KOEO) and key on engine running (KOER) self-test (Check A/CCS the PID to verify). If the vehicle is not equipped with A/C, DTC P1460 can be ignored. |
||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to KM: Air Conditioning Clutch Relay (A/CCR) Circuit STEP KM1. | GO to KM: Air Conditioning Clutch Relay (A/CCR) Circuit STEP KM1. | GO to KM: Air Conditioning Clutch Relay (A/CCR) Circuit STEP KM9. |