DTC P1298: ELD Circuit High Voltage Honda Ridgeline I

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see DTC TROUBLESHOOTING INDEX ).

Scheme 156

Scheme 157

Scheme 158

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, the system is OK at this time. Check for poor connections or loose terminals at the ELD and the 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. 18 IG ACG (15 A) fuse in the under-dash fuse/relay box and the ELD, then go to step 13 .
7. Turn the ignition switch OFF.
8. Jump the SCS line with the HDS.
9. Disconnect PCM connector A (44P).
10. Check for continuity between PCM connector terminal A23 and ELD 3P connector terminal No. 3. Is there continuity? YES - Go to step 11. NO - Repair open in the wire between the PCM (A23) and the ELD, then go to step 13 .
11. Check for continuity between ELD 3P connector terminal No. 2 and body ground. Is there continuity? YES - Go to step 12. NO - Repair open in the wire between the ELD and G202, then go to step 13 .
12. Replace the under-hood fuse/relay box (see «REMOVAL AND INSTALLATION»(ref-220003-S09253066142006021600000) ).
13. Reconnect all connectors.
14. Turn the ignition switch ON (II).
15. Reset the PCM with the HDS.
16. Do the PCM idle learn procedure (see «PCM IDLE LEARN PROCEDURE»(ref-219960-S21279730262006021600000) ).
17. Check for Temporary DTCs or DTCs with the HDS. Is DTC P1298 indicated? YES - Check for poor connections or loose terminals at the ELD unit and the PCM, then go to step 1 . NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.
18. Update the PCM if it does not have the latest software (see «PCM UPDATING AND SUBSTITUTION FOR TESTING»(ref-219956-S29187290912006021600000) ), or substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-219956-S20631232652006021600000) ).
19. Check for Temporary DTCs or DTCs with the HDS. Is DTC P1298 indicated? YES - Check for poor connections or loose terminals at the ELD unit and the PCM. If the PCM was updated, substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-219956-S20631232652006021600000) ), then recheck. If the PCM was substituted, go to step 1 . NO - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see «PCM REPLACEMENT»(ref-299652-S28764766372008092500000) ). If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.