P1462 Cadillac A/C pressure sensor circuit voltage high

P1462 Cadillac 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 Cadillac Description

    The ACP inputs a voltage to the PCM. If the voltage is below the calibrated level the DTC sets.

    Cadillac Vehicle:Cadillac CTS Coupe, Cadillac CTS-V Coupe , Cadillac Eldorado , Cadillac Escalade EXT , Cadillac ATS , Cadillac CTS , Cadillac CTS Sedan , Cadillac CTS Sport Sedan , Cadillac CTS-V , Cadillac CTS-V Sedan , Cadillac Catera , Cadillac DTS , Cadillac DeVille , Cadillac STS-V , Cadillac STS , Cadillac Seville , Cadillac XTS , Cadillac XLR , Cadillac XLR Platinum , Cadillac Escalade , Cadillac SRX