Low Oil Indicator Always On
- If diagnostic system check has been performed, go to next step. If diagnostic system check has not been performed, perform INSTRUMENT CLUSTER DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM.
- Start engine and observe low oil indicator light. If indicator light does not turn off after bulb test, go to next step. If indicator light turns off after bulb check, problem may be intermittent. Try to recreate fault by wiggling wiring and connectors. Check for faulty connections at all connectors that may be causing intermittent condition. See WIRING DIAGRAMS .
- Check engine oil level. If engine oil is low, go to next step. If oil level is okay, go to step 5 .
- Top off engine oil. Turn ignition on and observe low oil indicator light. If low oil level indicator light does not turn on then turn off after about 3 seconds, go to next step. If low oil indicator light turns on then turns off after about 3 seconds, no fault is indicated at this time. Test is complete.
- Using scan tool, check for Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTC). If any PCM DTCs are present, perform on-board diagnostic system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If no PCM DTCs are present, go to next step.
- Using scan tool, select WOW mode. Command instrument cluster indicator lights off. If low oil indicator light does not turn off, go to next step. If low oil indicator light turns off, perform on-board diagnostic system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
- Replace instrument cluster. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. Check system operation.