EPS System

Control System DTCs

EPS DTC Troubleshooting: 61-06

DTC 61-06 : Motor Harness Open

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the how to troubleshoot the EPS Initial Inspection and Diagnostic Overview.






1. Problem verification:

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

-2. Clear the DTC with the HDS.

-3. Turn the ignition switch to LOCK (0), then start the engine.

-4. Turn the steering wheel from lock to lock several times.

-5. Check for DTCs with the HDS.






Is DTC 61-06 indicated?
-YES- The failure is duplicated. Go to step 2.
-NO- Intermittent failure, the system is OK at this time.

2. Shorted wire check (MTR lines) 1:

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.






-3. Check for continuity between these test points and body ground individually.














Is there continuity?
-YES- Go to step 3.
-NO- The MTR wires are not shorted. Go to step 4.

3. Shorted wire check (MTR lines) 2:

-1. Disconnect the following connector.






-2. Check for continuity between these test points and body ground individually.














Is there continuity?
-YES- Repair a short to body ground in the wire between the EPS control unit and the EPS motor.
-NO- The MTR wires are OK. Replace the EPS motor Service and Repair.

4. Open wire check (MTR lines) 1:

-1. Check for continuity between test points 1 and 2.


















Is there continuity?
-YES- The MTR wires are OK. Go to step 6.
-NO- Go to step 5.

5. Open wire check (MTR lines) 2:

-1. Disconnect the following connector.






-2. On the EPS motor side, check for continuity between test points 1 and 2.


















Is there continuity?
-YES- Repair an open in the wire between the EPS control unit and the EPS motor.
-NO- The MTR wires are OK. Replace the EPS motor Service and Repair.

6. EPS control unit check (update):

-1. Reconnect the following connector.






-2. Update the EPS control unit Programming and Relearning if it does not have the latest software.

-3. Turn the ignition switch to LOCK (0), then start the engine.

-4. Turn the steering wheel from lock to lock several times.

-5. Check for DTCs with the HDS.






Is DTC 61-06 indicated?
-YES- Replace the EPS control unit Service and Repair.
-NO- Troubleshooting is complete.