1. Checking the operation of the pointer.
A) Disconnect the wire from the coolant temperature sensor terminal.
b) Turn on the ignition: the pointer arrow must remain on the mark "COOL" (cold).
V) Through a 3.4 W test lamp, connect the connector on the wire side with "earth".
G) Turn on the ignition: the pointer should move in the direction of the temperature increase.
d) If the temperature sensor does not work as specified, it should be replaced.
e) After replacing the sensor, check the system again and if the results of the system check are negative, then check the resistance between the pointer terminals.
2. Checking the resistance of the pointer, and) Measure resistance between terminals "A" And "IN".
Resistance is about 25 ohms.
b) If the resistance is not as specified, replace the pointer.
V) Check continuity between terminals "IN" And "WITH". If there is continuity, check the regulator voltage (see the corresponding paragraph in the subsection "Checking the fuel gauge").