Oil Pressure Warning Lamp Stays OFF (Ignition Switch ON)

WARNING LAMPS


Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)

1.CHECK OPERATION OF OIL PRESSURE WARNING LAMP
Activate IPDM E/R auto active test. Refer to Auto Active Test.
Does oil pressure warning lamp is blinking?
YES - GO TO 2.
NO - GO TO 4.
2.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and oil pressure switch connector.





3. Check continuity between IPDM E/R harness connector (A) and oil pressure switch harness connector (B).





OK or NG
OK - GO TO 3.
NG - Repair harness or connector.
3.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.
4.CHECK UNIFIED METER AND A/C AMP. (CONSULT-III)
Perform self-diagnosis of unified meter and A/C amp. Refer to Unified Meter and A/C AMP.
Self-diagnostic results content
No malfunction detected GO TO 5.
Malfunction detected Check applicable parts, and repair or replace corresponding parts.
5.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select "METER/M&A" on CONSULT-III.
2. Operate ignition switch with "OIL W/L" of "Data Monitor" and check operation status.

"OIL W/L"
When ignition switch is in ON position (Engine stopped) : On
When engine running : Off

OK or NG
OK - Replace combination meter.
NG - GO TO 6.
6.CHECK BCM INPUT SIGNAL
1. Select "SIGNAL BUFFER" of "BCM" on CONSULT-III.
2. Operate ignition switch with "OIL PRESS SW" of "Data Monitor" and check operate status.

"OIL PRESS SW"
When ignition switch is in ON position (Engine stopped) : On
When engine running : Off

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