Fuel Gauge
- To check power source, turn ignition switch on. Check voltage between specified instrument panel terminal and ground. Refer to FUEL & TEMPERATURE GAUGE TEST TERMINALS table. See Figure and Figure . If battery voltage is present, go to step 3).
- If battery voltage is not present, check for blown fuse or fusible link. Check harness continuity between battery terminal and combination meter. Check ignition relay and/or ignition switch for malfunction.
- Turn ignition on. On 240SX, connect a jumper wire between ground and fuel gauge terminal on back of instrument cluster. On all other models, connect a jumper wire with a 3.4 watt light bulb between fuel gauge terminal and ground for less than 10 seconds. Ensure fuel gauge moves smoothly from EMPTY to FULL.
- If fuel gauge does not move smoothly from EMPTY to FULL, replace fuel gauge. If fuel gauge moves smoothly from EMPTY to FULL, test fuel gauge sending unit. See FUEL GAUGE SENDING UNIT. If sending unit is okay, repair or replace harness between combination meter and fuel gauge unit harness.
FUEL & TEMPERATURE GAUGE TEST TERMINALS
| Application | Test Terminals | |
|---|---|---|
| Maxima & Stanza | No. 25 & Ground | |
| NX & Sentra | ||
| W/Tachometer | No. 12 & Ground | |
| W/O Tachometer | No. 17 & Ground | |
| Pathfinder & Pickup | ||
| W/Voltmeter | No. 2 & Ground | |
| W/O Voltmeter | No. 29 & Ground | |
| Sentra | ||
| W/Tachometer | No. 4 & Ground | |
| W/O Tachometer | No. 14 & Ground | |
| 240SX | ||
| W/Analog Speedometer | No. 24 & Ground | |
| W/Digital Speedometer | No. 17 & Ground | |
| 300ZX | ||
| W/Options | No. 29 & Ground | |
| W/O Options | No. 24 & Ground | |