| DTC P1298: | ELD Circuit High Voltage |
| 1. | 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 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the ELD and the ECM/PCM.n |
| 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 7. NO - Check the NO. 3 ALTERNATOR (10A) fuse in the under-dash fuse/relay box. If the fuse is OK, repair open in the wire between the NO. 3 ALTERNATOR (10 A) fuse and the ELD, then go to 12. |
| 7. | Jump the SCS line with the HDS. |
| 8. | Disconnect ECM/PCM connector A (44P). |
| 9. | Check for continuity between ELD 3P connrctor terminal No. 3 and ECM/PCM connector terminal A23.
Is there continuity? YES - Go to 10. NO - Repair open in the wirre between the ECM/PCM (A23) and the ELD, then go to 12. |
| 10. | Check for continuity between ELD 3P connrctor terminal No. 2 and body ground.
Is there continuity? YES - Go to 11. NO - Repair open in the wirre between the ELD and G201, then go to 12. |
| 11. | Replace the ELD. |
| 12. | Reconnect all connectors. |
| 13. | Turn the ignition switch ON (II). |
| 14. | Reset the ECM/PCM with the HDS. |
| 15. | Do the ECM/PCM idle learn procedure. |
| 16. | Check for Temporary DTCs or DTCs with the HDS. Is DTC P1298 indicated? YES - Go to 17. NO - Troubleshooting complete.n |
| 17. | Update the ECM/PCM if it does not have latest software, substitute a known-good ECM/PCM. |
| 18. | Check for Temporary DTCs or DTCs with the HDS. Are 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 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.n |