VQ37VHR: Diagnosis Procedure
- CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Refer to "DIAGNOSIS DESCRIPTION ".
Is oil pressure warning lamp blinking?
YES: GO TO 2.
NO: GO TO 4.
- CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to "DIAGNOSIS PROCEDURE ".
Is the inspection result normal?
YES: GO TO 3.
NO: Repair harness or connector.
- CHECK OIL PRESSURE SWITCH
Perform a unit check for the oil pressure switch. Refer to "COMPONENT INSPECTION ".
Is the inspection result normal?
YES: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".
NO: Replace oil pressure switch. Refer to "2WD: DISASSEMBLY AND ASSEMBLY " (2WD models) or "REMOVAL AND INSTALLATION " (AWD).
- CHECK COMBINATION METER INPUT SIGNAL
Connect CONSULT and perform an input signal check for the combination meter. Refer to "COMPONENT FUNCTION CHECK ".
Is the inspection result normal?
YES: Replace combination meter. Refer to "REMOVAL AND INSTALLATION ".
NO: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".