P1298

DTC P1298: ELD Circuit High Voltage (2005-2006 models)

1. Start the engine, and let it idle.
2. Check the ELD in the DATA LIST with the HDS.

Is 0.2 A or less indicated?

YES - Go to step 3.

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

3. Turn the ignition switch OFF.
4. Disconnect the ELD 3P connector.
5. Turn the ignition switch ON (II).




6. Measure voltage between ELD 3P connector terminal No. 1 and body ground.

Is there battery voltage?

YES - Go to step 7.

NO - Repair open in the wire between the No. 4 ACG (10 A) fuse and the ELD, then go to step 14.

7. Turn the ignition switch OFF.




8. Connect ELD 3P connector terminal No. 3 to body ground with a jumper wire.
9. Jump the SCS line with the HDS.
10. Disconnect ECM/PCM connector E (31P).




11. Check for continuity between ECM/PCM connector terminal E15 and body ground.

Is there continuity?

YES - Go to step 12.

NO - Repair open in the wire between the ECM/PCM (E15) and the ELD, then go to step 14.




12. Check for continuity between ELD 3P connector terminal No. 2 and body ground.

Is there continuity?

YES - Go to step 13.

NO - Repair open in the wire between the ELD and G301, then go to step 14.

13. Replace the under-hood fuse/relay box.
14. Reconnect all connectors.
15. Turn the ignition switch ON (II).
16. Reset the ECM/PCM with the HDS.
17. Do the ECM/PCM idle learn procedure.
18. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs with the HDS?

YES - Go to step 19.

NO - Troubleshooting is complete.

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

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P1298 is indicated, check for poor connections or loose terminals at the ELD and the ECM/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 ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM.