The Oil Pressure Warning Lamp Does Not Turn Off

THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF

Description

The oil pressure warning lamp remains illuminated while the engine is running (normal oil pressure).


Diagnosis Procedure


1. CHECK OIL PRESSURE WARNING LAMP

Perform auto active test. Refer to "Diagnosis Description" Reading and Clearing Diagnostic Trouble Codes.
Is oil pressure warning lamp illuminated?
YES- GO TO 2.
NO- GO TO 5.

2. CHECK IPDM E/R OUTPUT VOLTAGE

1.Disconnect the oil pressure switch connector.
2.Turn ignition switch ON.
3.Check voltage between the oil pressure switch harness connector terminal 1 and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 4.

3. CHECK OIL PRESSURE SWITCH UNIT

Perform a unit check for the oil pressure switch. Refer to "Component Inspection" Oil Pressure Switch Signal Circuit.
Is the inspection result normal?
YES- Replace IPDM E/R. Refer to "Removal and Installation" Removal and Installation.
NO- Replace oil pressure switch.

4. CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT

Check the oil pressure switch signal circuit. Refer to "Diagnosis Procedure" Oil Pressure Switch Signal Circuit.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair harness or connector.

5. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

Connect CONSULT and perform an input signal check for the unified meter and A/C amp. Refer to "Component Function Check" Oil Pressure Switch Signal Circuit.
Is the inspection result normal?
YES- Replace combination meter.
NO- Replace BCM. Refer to "Removal and Installation" Removal and Installation.