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Home >> Buick >> 1995 >> LeSabre Custom >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Panel >> Testing >> Check Oil Indicator Does Not Operate Correctly >> Base Cluster

Base Cluster

  1. Disconnect oil level module connector. Connect test light between module connector terminal No. 10 (Orange wire) and ground. Turn ignition on. If test light does not light, check Orange wire for an open circuit.
  2. Connect test light between module connector terminal No. 9 (Brown wire) and ground. If test light does not light, check Brown wire for an open circuit. If test light lights, connect test light between module connector terminal No. 6 (Brown/White wire) and ground. Turn ignition on. If test light does not light, check Brown/White wire for an open circuit. Check CHECK OIL light bulb for an open circuit. Check instrument cluster connector for good terminal contact. If all are okay, replace instrument cluster.
  3. If test light lights, connect test light between module connector terminals No. 6 (Brown/White wire) and No. 5 (Black/White wire). If test light does not light, check Black/White wire for an open circuit. If test light lights, measure resistance between oil level module connector terminal No. 3 (Brown wire) and No. 2 (Red/White wire). If about 3830 ohms are not present, check Brown and Red/White wires for an open circuit. Also check all connectors and wiring for an open circuit. If all circuits are okay, replace low oil level sensor.
  4. If about 3830 ohms are present, check voltage between oil level module connector terminal No. 1 (Orange/Black wire) and No. 2 (Red/Black wire). If voltmeter indicates about 1-2 volts in one direction only, check oil level module connector for good terminal contact. If terminal contact is okay, replace oil level module.
  5. If voltmeter does not indicate about 1-2 volts in one direction only, check Orange/Black wire for an open circuit. Check all connectors and low oil level sensor connector for good terminal contact. If all circuits are okay, replace low oil level sensor.
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