Oil Pressure Switch Signal Circuit Check

Oil Pressure Switch Signal Circuit Check

Description

Detects the engine oil pressure and transmits the oil pressure switch signal to the IPDM E/R.

Component Function Check

1. COMBINATION METER INPUT SIGNAL

1 Select "METER/M&A" on SDT.
2 Monitor "OIL W/L" of "Data list" while operating ignition switch.







Inspection End.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to [Meter: Wiring Diagram] Meter.

1. CHECK OIL PRESSURE SWITCH CIRCUIT

1 Turn ignition switch OFF.





2 Disconnect IPDM E/R connector E122 and oil pressure switch connector E208 (VQ40DE) or F4 (QR25DE).
3 Check continuity between IPDM E/R harness connector E122 (A) terminal 42 and oil pressure switch harness connector E208 (VQ40DE) or F4 (QR25DE) (B) terminal 1.






Is the inspection result normal?
YES
Inspection End.
NO
Repair harness or connector.

Component Inspection

1. CHECK OIL PRESSURE SWITCH

Check continuity between oil pressure switch and ground.











Is the inspection result normal?
YES
Inspection End.
NO
Replace the oil pressure switch.