P1298
DTC P1298: ELD Circuit High Voltage1. Turn the ignition switch ON (II).
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 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 - Check the No.92 IG 1 (7.5 A) fuse in the auxiliary fuse holder ('03 model) or No.9 LAFHT (15 A) fuse in the under-hood subfuse box ('04 model). If the fuse is OK, repair open in the wire between the No.9 LAFHT (15 A) fuse 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 B (56P).
10. Check for continuity between PCM connector terminal B25 and ELD 3P connector terminal No.3.
Is there continuity?
YES - Go to step 11.
NO - Repair open in the wire between the PCM (B25) 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 G201, then go to step 13.
12. Replace the under-hood fuse/relay box, the ELD unit is built-in.
13. Turn the ignition switch ON (II).
14. Reset the PCM with the HDS.
15. Do the PCM idle learn procedure.
16. Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC P1298 is stored, go to step 17. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO - Troubleshooting is complete.
17. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
18. Check for Temporary DTCs or DTCs in the DTCs MENU 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 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 is updated, troubleshooting was complete. If the PCM was substituted, replace the original PCM.