P1460 Lexus Wide open throttle A/C cutoff relay circuit

P1460 Lexus 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 Lexus Description

    Monitors the wide open throttle A/C cutoff (WAC) circuit output from the PCM. The test fails if: 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).

    Lexus Vehicle:Lexus ES,Lexus GS,Lexus GX,Lexus HS,Lexus IS,Lexus LFA,Lexus LS,Lexus LX,Lexus RX,Lexus RX,Lexus SC,Lexus GS350,Lexus GS450H,Lexus IS250,Lexus GX460,Lexus IS350,Lexus LS460,Lexus LS600H,Lexus LX570,Lexus RX350
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