P1461 Isuzu A/C pressure sensor circuit voltage low

P1461 Isuzu 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 Light)
    P1461 Isuzu Description

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

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