DTC B12E4

DTC B12E4 : Electric steering lock high level failure of MTRCUT2

DTC Description	DTC
B12E4 Electric steering lock high level failure of MTRCUT2

DTC (Power Control Unit)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .

Problem verification

-1. Clear the DTCs with the HDS.

Clear DTCs

-2. Do this procedure ten times: Press the engine start/stop switch to select the OFF (LOCK), ACCESSORY, ON, and OFF (LOCK) mode.

-3. Check for DTCs with the HDS.

DTC Description	DTC
B12E4 Electric steering lock high level failure of MTRCUT2

Is DTC B12E4 indicated?

YES

Go to step 2.

Intermittent failure, the system is OK at this time. Check for loose or poor connections.

Open wire check (PGND line)

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

-2. Disconnect the following connector.

Electric steering lock 12P connector

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

Test condition	Vehicle OFF (LOCK) mode Electric steering lock 12P connector: disconnected
Test point 1	Electric steering lock 12P connector (female terminals) No. 7:
Test point 2	Body ground

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

Is there continuity?

YES

The PGND wire is OK. Go to step 3.

Repair an open or high resistance in the ground wire or poor ground (G401).

Open wire check (MTR CUT2 line)

-1. Disconnect the following connector.

Keyless access/TPMS control unit connector B (36P)

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

Test condition	Vehicle OFF (LOCK) mode Electric steering lock 12P connector: disconnected Keyless access/TPMS control unit connector B (36P): disconnected
Test point 1	Electric steering lock 12P connector (female terminals) No. 4:
Test point 2	Keyless access/TPMS control unit connector B (36P) No. 6

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

Is there continuity?

YES

Repair an open or high resistance in the wire.