Test 10A - Mic Oil Pressure Warning Light Faulty
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION
. For appropriate wiring diagram, see WIRING DIAGRAMS
at end of article.
- Check engine oil level. If oil level is not within specification, adjust as necessary. After adjusting oil level, perform VERIFICATION PROCEDURE VER-1.
- If oil level is within specification, remove oil pressure switch. Switch is located on lower left side of engine. Connect hand-held oil pressure gauge in place of switch and start engine. If gauge reading is less than 4 psi (.28 kg/cm2 ) at idle, check mechanical condition of engine for low oil pressure. Repair as necessary.
- If gauge reading is 4 psi (.28 kg/cm2 ) or greater at idle, allow engine to reach normal operating temperature. If gauge reading is less than 4 psi (.28 kg/cm2 ) with warm engine and at idle, check mechanical condition of engine for low oil pressure.
- If gauge reading is 4 psi (.28 kg/cm2 ) or greater with warm engine and at idle, check if oil pressure warning light is off. If oil pressure warning light is off, replace oil pressure switch. Perform VERIFICATION PROCEDURE VER-1.
- If oil pressure warning light is on, turn ignition off. Disconnect Mechanical Instrument Cluster (MIC) Gray connector. With DRB-II in ohmmeter mode, check resistance on MIC Gray connector low oil pressure warning light sense circuit (Gray wire). If resistance is less than 5 ohms, repair short to ground in Gray wire. Perform VERIFICATION PROCEDURE VER-1. If resistance is more than 5 ohms, replace instrument cluster printed circuit board. Perform VERIFICATION PROCEDURE VER-1.