Fuel Gauge: Testing and Inspection

1. Check No. 13 (10A) fuse in under dash fuse/relay box before testing.
2. Disconnect 5-P connector from fuel gauge sending unit.

Fig. 5 Fuel Gauge Sending Unit:

3. Connect voltmeter positive probe to yellow/green terminal and negative probe to ground, then turn ignition switch to On position, Fig. 5.
4. Voltage should be between 5-8 volts.
5. If voltage is not as specified, check the following:
a. Check open yellow or yellow/green wire.
b. Check blown fuse or poor ground.
6. Turn ignition switch On, then check as pointer of fuel gauge starts moving toward F mark. Turn ignition switch to Off before pointer reaches F mark on gauge dial. Failure to do so may damage fuel gauge.
7. If pointer of fuel gauge does not move, replace gauge.
8. If gauge is satisfactory, inspect fuel gauge and sending unit.