DTC P1298: ELD Circuit High Voltage
- Reset the ECM (see page 11-4).
- Start the engine.
- Turn on the headlights.
Is DTC P1298 indicated?
YES - Go to step 4.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the ELD and at the ECM. 
- Turn the ignition switch and headlights OFF.
- Disconnect the ELD 3P connector.
- Turn the ignition switch ON (II).
- Measure voltage between body ground and the ELD 3P connector terminal No. 1.
ELD 3P CONNECTOR
Wire side of female terminals
Is there battery voltage?
YES - Go to step 8.
NO - Check the No. 4 ACG (10A) fuse in the under-dash fuse/relay box. If the fuse is OK, repair open in the wire between the No. 4 ACG (10A) fuse and the ELD.
- Turn the ignition switch OFF.
- Connect the ELD 3P connector terminal No. 3 and body ground with a jumper wire.
ELD 3P CONNECTOR
Wire side of female terminals
- Disconnect ECM connector E (31P).
- Check for continuity between body ground and ECM connector terminal E15.
ECM CONNECTOR E (31P)
Wire side of female terminals
Is there continuity?
YES - Go to step 12.
NO - Repair open in the wire between the ECM (E15) and the ELD.