Diagnosis Procedure

CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Refer to DIAGNOSIS DESCRIPTION .

Does oil pressure warning lamp blink?

YES: GO TO 2.

NO: Replace combination meter.

CHECK IPDM E/R OUTPUT VOLTAGE

Disconnect the oil pressure switch connector.
Turn ignition switch ON.

Check voltage between the oil pressure switch harness connector and ground.

TERMINALS VOLTAGE TABLE

Terminals			Voltage
(+)		(-)
Oil pressure switch		Ground
Connector	Terminal
F37	1		Approx. 12 V

Is the inspection result normal?

YES: GO TO 3.

NO: GO TO 4.

CHECK OIL PRESSURE SWITCH UNIT
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.
CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES: Replace IPDM E/R. Refer to REMOVAL AND INSTALLATION .

NO: Repair harness or connector.