Resistance diagram between the terminals of the fuel level and oil temperature gauges
1. Fuel gauge
2. Temperature gauge
Examination
1. Turn the ignition key to the ON position.
2. If the arrows of the pointers remain motionless, then check the fuse. If the fuse is good, then locate the corresponding indicator sensor and connect the sensor wire to ground. If the arrow moves to the desired area of the pointer scale, then replace the sensor. Otherwise, connect to ground the terminal on the back of the pointer, which is connected to the sensor (while following the diagram). If the arrow has moved, then the wiring from the pointer to the sensor is faulty. Otherwise, check the voltage at the second output of the pointer. If voltage is present, replace the pointer.
Attention! The resistance between terminals A and B on a serviceable fuel gauge should be 126 ohms, between A and C - 280 ohms and between B and C - 154 ohms. On a working temperature gauge, these resistances should be 175 ohms (A - B), 54 Ohm (A - C) and 229 ohm (B - C).
3. To check the pointers themselves, remove the instrument panel and check the resistance of the pointers.