Contents: Checking the operation of the…↓ Checking the resistance of the…↓ Checking the coolant temperature…↓
Checking the operation of the temperature indicator
1. Disconnect the connector from the temperature sensor.
2. Turn on the ignition. The temperature gauge arrow should point to the "COOL" position.
3. Using a 3 W test lamp, ground the connector terminal on the wire side.
4. Turn on the ignition, check that the indicator lamp is on and the pointer moves to the "HOT" mark.
5. Replace the sensor if the indicator works differently from the description.
6. After this, recheck the system. If the indicator operation is different from the description, measure the resistance of the indicator.
Checking the resistance of the temperature gauge
Measure the resistance between the terminals:
Models before 1996
Resistance between terminals:
- T—E ~214 Ohm
- T—IG ~75 Ohm
- E—IG ~139 Ohm
Models after 1996
Resistance between terminals:
- A-B ~58.5 Ohm
- A—C ~175 Ohm
- B—C ~102, Ohm
If the resistance differs from the specified value, replace the indicator.
Checking the coolant temperature sensor
Measure the resistance between the terminal and the sensor body. Nominal resistance:
- at 50°C: 160-240 Ohm
- at 120°C: 17.1-21.2 Ohm
Note: Resistance values are given for models produced since 1996.