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. Refer to 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. Refer to Inspection with CONSULT-III (Self-Diagnosis) Service and Repair.
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, refer to Oil Pressure Sensor Inspection.
NG >> Repair harness or connector.
4. CHECK OIL PRESSURE SWITCH
Check oil pressure switch. Refer to Warning Lamps.
OK or NG
OK >> Replace IPDM E/R. Refer to 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. Refer to 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. Refer to Service and Repair.
NG >> Replace IPDM E/R. Refer to Service and Repair.