Fuel Gauge: Testing and Inspection

NOTE: Refer to Gauge Assembly for the circuit diagram of the fuel gauge.

1. Check the No. 15 (10 A) fuse in the under-dash fuse relay box before testing.
2. Remove the rear locking compartment.
3. Remove the fuel tank access panel from the floor.

Fuel Gauge-Gauge Test:

4. With the ignition switch OFF, disconnect the 3P connector from the fuel gauge sending unit.
5. Connect the voltmeter positive probe to the YEL/WHT terminal and the negative probe to the BLK/WHT terminal, then turn the ignition switch ON (II). There should be between 5 and 8 V.
^ If the voltage is as specified, go to step 6.
^ If the voltage is not as specified, check for:
- an open in the YEL, YEL/WHT or BLK/WHT wires.
- loose or disconnected terminals.
- faulty fuel gauge.
6. Turn the ignition switch OFF. Connect a jumper wire between the YEL/WHT and BLK/WHT terminals, then turn the ignition switch ON (II).

CAUTION: Do not connect power and ground to the terminals; it will damage the fuel gauge.

7. Check that the pointer of the fuel gauge starts moving toward the "F" mark.

CAUTION: Disconnect the jumper wire as soon as the gauge reaches "F", or you will damage the gauge.

^ If the fuel gauge does not work at all, replace it.
^ If the fuel gauge is OK, inspect the sending unit.