HVAC

EPS DTC Troubleshooting: 1, 2

DTC 1: Power Relay Stuck ON

DTC 2: Fail-safe Relay Stuck ON

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0).

4. Turn the ignition switch to ON (II).

Does the EPS indicator come on?
YES - Go to step 5.

NO - Check for loose terminals or poor connections. If the connections are good, the system is OK at this time.


5. Check for DTCs with the HDS.

Is DTC 1 or 2 indicated?
YES - Check for loose terminals in the EPS control unit connectors, and repair if necessary. If no poor connections are found, replace the EPS control unit. Service and Repair

NO - Troubleshoot the indicated DTC.