Pinpoint Test 10

Flowchart No. 10 Symptom Oil pressure warning light remains illuminated (engine running)

Possible cause
^ Low oil pressure
^ Damaged oil pressure switch
^ Open or short circuit in wiring harness

Step 1





1. Measure the engine oil pressure.

Oil pressure:
340-490 kPa {3.4-5.0 kgf/sq. cm, 49-71 psi} at 3,000 rpm (KL)
400-490 kPa {4.0-5.0 kgf/sq. cm, 51-71 psi} at 3,000 rpm (FS)

2. If correct, go to Step 2.
3. If not as specified, inspect the lubrication system.

Step 2
1. Disconnect the oil pressure switch connector.

Ohmmeter Connection:

Reference:

2. Start the engine and check for continuity between the oil pressure switch terminal and ground.
3. If correct, repair the wiring harness (instrument cluster-oil pressure switch).
4. If not as specified, replace the oil pressure switch.