| DTC P1297 (20-1): | ELD Circuit Low Voltage |
| 1. | Reset the ECM/PCM. |
| 2. | Start the engine. |
| 3. | Turn on the headlights. Is DTC P1297 indicated? YES - Go to 4. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the ELD and at the ECM/PCM.n |
| 4. | Turn the ignition switch and the headlights OFF. |
| 5. | Disconnect the ELD 3P connector. |
| 6. | Turn the ignition switch ON (II). |
| 7. | Measure voltage between body ground and the ELD 3P connector terminal No. 3.
Is there about 5 V? YES - Replace the ELD.n NO - Go to 8. |
| 8. | Turn the ignition switch OFF. |
| 9. | Disconnect ECM/PCM connector E (31P). |
| 10. | Check for continuity between body ground and ECM/PCM connector terminal E15.
Is there continuity? YES - Repair short in the wire between the ECM/PCM (E15) and the ELD.n NO - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/ PCM.n |