EPS System

Control System DTCs

EPS DTC Troubleshooting: 61-05

DTC 61-05 : Motor Harness Short

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. Check for DTCs with the HDS.

Is DTC 61-05 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 to power):

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

-2. Disconnect the following connector.

-3. Turn the ignition switch to ON (II).

-4. Measure the voltage between these test points and body ground individually.

Is there battery voltage?
-YES- Repair a short to power in the wire between the EPS control unit and the EPS motor.
-NO- The MTR wires are not shorted to power. Go to step 3.

3. Shorted wire check (MTR lines) 1:

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

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

Is there continuity?
-YES- Go to step 4.
-NO- The MTR wires are OK. Go to step 5.

4. 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.

5. 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. Check for DTCs with the HDS.

Is DTC 61-05 indicated?
-YES- Replace the EPS control unit Service and Repair.
-NO- Troubleshooting is complete.