DTC 61-04: Motor Harness Malfunction

NOTE: Before you troubleshoot, review the general troubleshooting information .

DTC Description	DTC	Freeze Frame
61-04 Motor Harness Malfunction

1. Problem verification:

1. Turn the vehicle to the ON mode.

2. Clear the DTC with the HDS.

3. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

4. Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
61-04 Motor Harness Malfunction

Is DTC 61-04 indicated?

YES

The failure is duplicated. Go to step 2.

Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.

2. Open wire check (MTR lines) 1:

1. Turn the vehicle to the OFF (LOCK) mode.

2. Disconnect the following connector.

EPS control unit connector B (16P)

3. Check for continuity between test points 1 and 2 individually.

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector B (16P): disconnected
Test point 1	EPS control unit connector B (16P) No. 1
Test point 2	EPS control unit connector B (16P) No. 2

Test point 1	EPS control unit connector B (16P) No. 1
Test point 2	EPS control unit connector B (16P) No. 3

Test point 1	EPS control unit connector B (16P) No. 2
Test point 2	EPS control unit connector B (16P) No. 3

Is there continuity?

YES

The MTR wires are OK. Go to step 4.

Go to step 3.

3. Open wire check (MTR lines) 2:

1. Disconnect the following connector.

EPS motor 3P connector

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

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector B (16P): disconnected
	EPS motor 3P connector: disconnected
Test point 1	EPS motor 3P connector No. 1
Test point 2	EPS motor 3P connector No. 2

Test point 1	EPS motor 3P connector No. 1
Test point 2	EPS motor 3P connector No. 3

Test point 1	EPS motor 3P connector No. 2
Test point 2	EPS motor 3P connector No. 3

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

Repair an open in the wire between the EPS control unit and the EPS motor.

Open circuit in EPS motor. Replace the EPS motor .

4. EPS control unit check (update):

1. Reconnect the following connector.

EPS control unit connector B (16P)

2. Update the EPS control unit if it does not have the latest software.

3. Clear the DTC with the HDS.

4. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

5. Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
61-04 Motor Harness Malfunction

Is DTC 61-04 indicated?

YES

Replace the EPS control unit .

Troubleshooting is complete.