DTC P1460: Fuel Level Sensor Power Supply Circuit
CAUTION:
When substituting or replacement of PCM is recommended, see PCM REMOVAL & REPLACEMENT
for important precautions.
- Turn ignition on. Using Honda PGM Tester or the HDS, do the DTC CLEAR in the CLEAR menu.
- Using Honda PGM Tester or the HDS, check the FUEL REF VOL, FUEL LEVEL SENSOR in the DATA list. Subtract the voltage of FLEVEL 2 from the voltage of FLEVEL 1. If there is 0.198 volt or more, go to next step. If there is not 0.198 volt or more, problem is intermittent, system is OK at this time. Check for poor connections or loose terminals at the gauge assembly and PCM.
- Turn ignition off. Disconnect PCM harness connector "B". See Figure . Turn ignition on. Measure voltage between ground and PCM harness connector terminal B51 (Light Green/White wire). If there is battery voltage, go to step 7 . If there is not battery voltage, go to next step.
- Turn ignition off. Disconnect the gauge assembly 14-pin connector "C". See Fig 1 . Check for continuity between PCM harness connector terminal B51 (Light Green/White wire) and gauge assembly 14-pin connector terminal C6. If there is continuity, replace gauge assembly. Go to next step. If there is no continuity, repair open in wire between PCM harness connector terminal B51 (Light Green/White wire) and gauge assembly 14-pin connector terminal C6. Go to next step.
- Turn ignition on. With the Honda PGM tester or the HDS, do PCM RESET in the CLEAR menu. Do the PCM idle learn procedure. See PCM IDLE LEARN PROCEDURE . Go to next step.
- Check for Temporary DTCs or DTCs in the DTC menu. If DTC P1460 is set, check for poor connections or loose terminals at gauge assembly and PCM harness connectors. Go to step 1 . If any other Temporary DTCs or DTCs are set, troubleshoot those indicated. If Temporary DTCs or DTCs are not set, troubleshooting is done.
- Update the PCM if it does not have the latest software, or substitute a know-good PCM.
- Check for Temporary DTCs or DTCs in the DTC menu. If DTC P1460 is set, check for poor connections or loose terminals at gauge assembly and PCM harness connectors. Go to step 1 . If any other Temporary DTCs or DTCs are set, troubleshoot those indicated. If Temporary DTCs or DTCs are not set, PCM was updated, troubleshooting is done. If PCM was substituted, replace the original PCM.