Contents: Examination ⇓ Replacement ⇓
Location of sensors (4-cylinder models)
A – Temperature indicator sensor
B – Coolant temperature sensor
C – Cooling fan sensor
Location of sensors (6-cylinder models)
A – Temperature indicator sensor
B – Coolant temperature sensor
C – Cooling fan sensor
Examination
1. If the coolant temperature sensor is not working, check its fuse.
2. If the sensor indicator shows that the engine is hot when you just started a cold engine, disconnect the wire from the sensor. If the indicator reading decreases, replace the sensor. If the readings remain the same, then the indicator wiring is broken or the indicator is faulty.
3. If the indicator shows nothing after the engine has warmed up and the indicator fuses are intact, turn off the engine, disconnect the wire from the sensor and use a jumper to connect the wire to the engine ground. Without starting the engine, turn on the ignition for a moment. If the indicator shows that the engine is warm, replace the sensor.
Replacement
1. Drain the coolant.
2. Disconnect the wire from the sensor.
3. Unscrew the faulty sensor and screw in a new one. Connect the wire and check the operation of the sensor.
[The original article is posted on: mazbook.ru]