DTC P0461: Fuel Level Sensor Circuit Performance
NOTE:
If DTCs P0461 and P0463 are set together, diagnose DTC P0463 first.
- Turn ignition on. On models equipped with 3-speed automatic or manual transmission, measure voltage (backprobe) between ground and terminal No. 3 (Yellow/Red wire) at 16-pin PCM harness connector. On models equipped with 4-speed automatic transmission, measure voltage (backprobe) between ground and terminal No. 3 (Yellow/Red wire) at 12-pin PCM harness connector. Note voltage. Add one gallon (3.8L) of fuel to tank. If voltage decreases, go to next step. If voltage increases, go to step 3).
- Check for an intermittent problem. See TESTS W/O CODES article. Repair as necessary and retest system.
- If voltage is 0-1 volt, ensure fuel tank is neither full or empty. Adjust if necessary and go to next step. If voltage is not as specified, replace fuel level sensor and retest system.
- Observe fuel gauge. If gauge reads EMPTY, repair open in Yellow/Red wire between fuel gauge and PCM. If gauge reads actual fuel level, repair open in Yellow/Red wire or poor connection at PCM. If gauge reads FULL, go to next step.
- Disconnect fuel gauge harness connector. If fuel gauge reading drops to EMPTY, replace fuel level sensor. If fuel gauge reading does not change, check Yellow/Red wire for a short to ground. Repair as necessary. If wire is okay, replace fuel level gauge and retest system.