Oil Pressure Warning Lamp Stays OFF (Ignition Switch ON)

WARNING LAMPS


Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)

1.CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Auto Active Test.
Does oil pressure warning lamp blink?
YES - GO TO 2.
NO - GO TO 5.
2.CHECK IPDM E/R INPUT SIGNAL
1. Turn ignition switch ON.





2. Check voltage between IPDM E/R harness connector and ground.






OK or NG
OK - Replace IPDM E/R. Inspection with CONSULT-III (Self-Diagnosis) Service and Repair, "Removal and
Installation of IPDM E/R".
NG - GO TO 3.
3.CHECK OIL PRESSURE CIRCUIT
1. Disconnect IPDM E/R connector and oil pressure switch connector (with MR20DE) or double meter connector (with QR25DE).





2. Check continuity between IPDM E/R harness connector E46 (A) terminal 37 and oil pressure switch harness connector F32 (B) terminal 1 (with MR20DE) or double meter connector M89 (C) terminal 6 (with QR25DE).






OK or NG
OK - With MR20DE, GO TO 4. With QR25DE, Oil Pressure Sensor Inspection.
NG - Repair harness or connector.
4.CHECK OIL PRESSURE SWITCH
Check oil pressure switch. Warning Lamps.
OK or NG
OK - Replace IPDM E/R. Service and Repair.
NG - Replace oil pressure switch.
5.CHECK CAN COMMUNICATION
Select "METER/M&A" on CONSULT-III, and perform self-diagnosis of combination meter.
Self-diagnostic results content
No malfunction detected- GO TO 6.
Malfunction detected- Check applicable parts, and repair or replace as necessary.
6.CHECK COMBINATION METER INPUT SIGNAL
Select "METER/M&A" on CONSULT-III. Operate ignition switch with "OIL W/L" of "DATA MONITOR" and check operation status.






OK or NG
OK - Replace combination meter. Removal And Installation.
NG - GO TO 7.
7.CHECK BCM INPUT SIGNAL
Select "BCM" on CONSULT-III. Then select "SIGNAL BUFFER". Operate ignition switch with "OIL PRESS
SW" of "DATA MONITOR" and check operation status.






OK or NG
OK - Replace BCM. Service and Repair.
NG - Replace IPDM E/R. Service and Repair.