Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Engine Coolant Temperature (ECT) Sensor (18.30.10)

Removal

CAUTION:
- Engine coolant will damage the paint finished surfaces. If spilt, immediately remove the coolant and clean the area with water.
- Anti-freeze concentration must be maintained at 50%.

1. Remove the cover and disconnect the battery ground cable.
2. Drain the cooling system.

WARNING: Since injury such as scalding could be caused by escaping steam or coolant, do not remove the filler cap from the coolant expansion tank while the system is hot.

3. Remove the thermostat housing.
4. Remove the ECT sensor.
- Remove the retaining clip.
- Remove and discard the O-ring seal.







5. Remove and discard the 2 O-ring seals.







Installation
1. Install the O-ring seals.
2. Install the ECT sensor.
- Install the new O-ring seals.
- Install the retaining clip.
3. Install the thermostat housing.
- Connect and secure the electrical connector.
- Install the bolts and tighten to 10 Nm (7 lb.ft).
4. Refill the cooling system.
5. Connect the battery ground cable and install the cover.