P1460

DTC P1460: Fuel Level Sensor (Fuel Gauge Sending Unit) Power Supply Circuit

1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Check the FUEL REF VOL, FUEL LEVEL SENSOR in the DATA LIST with the HDS.
4. Subtract the voltage of FLEVEL 2 from the voltage of FLEVEL 1.

Is there 0.195 V or more?

YES - Go to step 5.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the gauge assembly and the PCM.

5. Turn the ignition switch OFF.
6. Jump the SCS line with the HDS.
7. Disconnect PCM connector B (56P).
8. Turn the ignition switch ON (II).




9. Measure voltage between the PCM connector terminal B51 and body ground.

Is there battery voltage?

YES - Go to step 18.

NO - Go to step 10.

10. Turn the ignition switch OFF.
11. Disconnect the gauge assembly connector C.







12. Connect the gauge assembly connector C terminal No.6 (No.7*) to body ground with a jumper wire.




13. Check for continuity between PCM connector terminal B51 and body ground.

Is there continuity?

YES - Replace the gauge assembly, then go to step 14.

NO - Repair open in the wire between the PCM (B51) and gauge assembly, then go to step 14.

14. Turn the ignition switch ON (II).
15. Reset the PCM with the HDS.
16. Do the PCM idle learn procedure.
17. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P1460 is indicated, check for poor connections or loose terminals at the gauge assembly and the PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - Troubleshooting is complete.

18. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
19. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P1460 is indicated, check for poor connections or loose terminals at the gauge assembly and the PCM, then go to step 1, If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM.