DTC Troubleshooting: P1298 (20-2)

DTC P1298: ELD Circuit High Voltage NOTE:

- Information marked with an asterisk ( * ) applies to the 2004 model.
- Information marked with double asterisk ( ** ) applies to the 2005 model.

1. Turn the ignition switch ON (II).

1. Check the ELECTRICAL LOAD DETECTOR 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.■

1. Turn the ignition switch OFF.

1. Disconnect the ELD 3P connector.

1. Turn the ignition switch ON (II).

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

Is there battery voltage?

YES | - | Go to Step 7 .
NO | - |

- 2004 model: Repair open in the wire between No. 8 FI ECU (ECM) (20 A) fuse and the ELD, then go to Step 15 .
- 2005 model: Repair open in the wire between No. 18 IG ACG (15 A) fuse and the ELD, then go to Step 15 .

1. Turn the ignition switch OFF, and wait 30 seconds.

1. Disconnect ECM connector No. 2 (58P).

1. Connect ELD 3P connector terminal No. 3 to body ground with a jumper wire.

1. Check for continuity between ECM connector No. 2 terminal No. 23 and body ground.

Is there continuity?

YES | - | Go to Step 11 .
NO | - | Repair open in the wire between the ELD and ECM connector No. 2 terminal No. 23, then go to Step 15 .

1. Connect ELD 3P connector terminal No. 2 to body ground with a jumper wire.

1. Check for continuity between ECM connector No. 2 terminal No. 21 and body ground.

Is there continuity?

YES | - | Go to Step 13 .
NO | - | Repair open in the wire between the ELD and ECM connector No. 2 terminal No. 21, then go to Step 15 .

1. Turn the ignition switch OFF.

1. Replace the under-hood fuse/relay box.

1. Reconnect all connectors.

1. Turn the ignition switch ON (II).

1. Reset the ECM with the HDS.

1. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES | - | Go to Step 19 .
NO | - | Troubleshooting is complete.■

1. Update the ECM if it does not have the latest software, or substitute a known-good ECM.

1. 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, 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 was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. ■