Oil Level Sensor Inoperative

Conditions for Fault-Tracing:





- Oil level warning light comes on.
- Engine oil level is higher than 4 mm (0,16") over MIN mark on dipstick.
- Fuse # 15 on fuse panel has not blown.

Sources of Fault:
- Open-circuit in oil level sensor signal lead.
- Warning light signal lead short-circuited to ground.
- Fault in oil level sensor relay.
- Fault in oil level sensor.

1) Checking Oil Level Sensor:





- Ignition off.
- Undo oil level sensor connector.
- Connect a lead between oil level sensor terminals 1 and 2.
- Start engine.
- See if oil level warning light comes on.

If warning light comes on:
- Check warning light signal lead. See step 2, below.

If warning light does not come on:
- Fault in oil level sensor.
- Replace oil level sensor and test. Oil Level Sensor

2) Checking Warning Light Signal Lead:









- Ignition off.
- Remove oil level sensor relay 4/18.
- Start engine.
- See if oil warning light comes on.

If warning light comes on:
- Short-circuit to ground in signal lead between instrument panel terminal # A27 and oil level sensor relay holder terminal 9.
- Check signal lead and connections for short-circuit to ground. Checking Cables and Terminals

If warning light does not come on:
- Check oil level sensor signal lead. See step 3, below.

3) Checking Oil Level Sensor Signal Lead:





- Ignition off.
- Connect an ohmmeter between terminal 2 on oil level sensor connector and terminal 8 on oil level sensor relay holder.
- Ohmmeter should read approx. 0 ohm.

If reading is correct:
- Fault in oil level sensor relay.
- Replace relay. Service and Repair
- For relay location, Locations (Relays, Inside Electrical Control Panel, Via Passenger Compartment.)

If warning light does not come on:
- Open-circuit in signal lead between oil level sensor connector terminal 2 and oil level sensor relay holder terminal 8.
- Check signal lead for open-circuit. Checking Cables and Terminals