Nissan Murano: Dtc/circuit Diagnosis / P0531 Refrigerant Pressure Sensor

Nissan Murano (Z52) 2015-2024 Service Manual / Engine / Engine Control System :: Vq35de / Dtc/circuit Diagnosis / P0531 Refrigerant Pressure Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)
DTC detecting condition
P0531

REFRIGERANT PRESS SENSOR A

(A/C refrigerant pressure sensor A circuit range/performance)
Diagnosis condition
  • Ignition switch ON

  • Engine running

Signal (terminal) Refrigerant pressure sensor signal
Threshold ECM detects that input signal is out of the specified range.
Diagnosis delay time 5 seconds or more

POSSIBLE CAUSE

  • Harness or connectors

  • Refrigerant pressure sensor

FAIL-SAFE

Not applicable

DTC Confirmation Procedure

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.

  2. Turn ignition switch ON.

  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is 11 V or more under ignition switch OFF condition.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Start engine and run it for at least 10 seconds at idle speed.

  2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

INSPECTION END

DTC Diagnosis Procedure

CHECK REFRIGERANT PRESSURE SENSOR

Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace refrigerant pressure sensor. Refer to Removal and Installation.

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