Test J: Fuel Gauge
NOTE:
See WIRING DIAGRAMS for fuel gauge circuit.
- Before testing, check the fuse No.5 (10 A) in the under-dash fuse box.
- Remove the rear bulkhead panel behind the driver's seat, then remove the access panel.
- Disconnect the 3-P connector from the fuel gauge sending unit. See Fig 1.
- Connect the voltmeter positive probe to the B (YEL/WHT) terminal and the negative probe to the C (BLK) terminal, then turn the ignition switch ON. There should be between 5 and 8 V.
- If the voltage is as specified, go to next step.
- If the voltage is not as specified, check for an open in the YEL, YEL/WHT or BLK wire or poor ground (G403).
- Turn the ignition switch OFF. Connect a jumper wire between the B (YEL/WHT) and A (BLK) terminals.
- Turn the ignition switch ON. Check that the pointer of the fuel gauge starts moving toward the "F" mark.
- If the pointer of the fuel gauge does not move at all, replace the gauge.
- If the fuel gauge is OK, check the sending unit.
CAUTION:
Do not apply battery voltage to the terminals; it will damage the fuel gauge.
CAUTION:
Turn the ignition switch OFF before the pointer reaches the "F" mark on the gauge dial; if you don't, you may cause damage to the fuel gauge.