DTC B12E1: Electric Steering Lock Motor Internal Error

DTC (Power Control Unit)

1. Problem verification

   -1. Clear the DTCs with the HDS.

   - 2. Do this procedure 10 times: Press the engine start/stop button to select the OFF, ACC, ON, and OFF mode.

   - 3. Check for DTCs with the HDS.

   DTC Description	DTC
   B12E1 Electric Steering Lock Motor Internal Error

   Is DTC B12E1 indicated?

   YES 

   Go to step 2 below.

   NO 

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

2. Open wire check (+B SMART line)

   -1. Press the engine start/stop button to select the OFF mode.

   - 2. Disconnect the following connector.

   Electric steering lock 12P connector

   - 3. Measure the voltage between test points 1 and 2.

   Test condition	OFF mode Electric steering lock 12P connector: disconnected
   Test circuit	+B SMART
   Test point 1	Electric steering lock 12P connector No. 3 (RED)
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   The +B SMART wire is OK. Go to step 3 below.

   NO 

   Repair an open or high resistance in the wire.

3. Open wire check (GND line)

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

   Test condition	OFF mode Electric steering lock 12P connector: disconnected
   Test circuit	GND
   Test point 1	Electric steering lock 12P connector No. 7 (BLK)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   The GND wire is OK. Go to step 4 below.

   NO 

   Repair an open or high resistance in the ground wire or poor ground (G501).

4. Open wire check (IG1 FUEL PUMP line)

   -1. Press the engine start/stop button to select the ON mode.

   - 2. Measure the voltage between test points 1 and 2.

   Test condition	ON mode Electric steering lock 12P connector: disconnected
   Test circuit	IG1 FUEL PUMP
   Test point 1	Electric steering lock 12P connector No. 12 (YEL)
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   IG1 FUEL PUMP wire is OK. Go to step 5 below.

   NO 

   Repair an open or high resistance in the wire.

5. Open wire check (MTR CONT line)

   -1. Press the engine start/stop button to select the OFF mode.

   - 2. Disconnect the following connector.

   Keyless access control unit connector C (24P)

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

   Test condition	OFF mode Electric steering lock 12P connector: disconnected Keyless access control unit connector C (24P) : disconnected
   Test circuit	MTR CONT
   Test point 1	Electric steering lock 12P connector No. 1 (PNK)
   Test point 2	Keyless access control unit connector C (24P) No. 9 (PNK)

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

   Is there continuity?

   YES 

   The MTR CONT wire is OK. Go to step 6 below.

   NO 

   Repair an open or high resistance in the wire.

6. Shorted wire check (MTR CUT1 (CONT), MTR CUT2 (IG1) lines)

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

   Test condition	OFF mode Electric steering lock 12P connector: disconnected Keyless access control unit connector c (24P) : disconnected
   Test circuit	MTR CUT1 (CONT)
   Test point 1	Electric steering lock 12P connector No. 2 (BLU)
   Test point 2	Body ground

   Test circuit	MTR CUT2 (IG1)
   Test point 1	Electric steering lock 12P connector No. 4 (GRN)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short to ground in the wire.

   NO 

   The MTR CUT1 (CONT) and MTR CUT2 (IG1) wires are not shorted. Go to step 7 below.

7. Open wire check (MTR CUT1 (CONT), MTR CUT2 (IG1) lines)

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

   Test condition	OFF mode Electric steering lock 12P connector: disconnected Keyless access control unit connector A (36P) : disconnected
   Test circuit	MTR CUT1 (CONT)
   Test point 1	Keyless access control unit connector C (24P) No. 14 (BLU)
   Test point 2	Electric steering lock 12P connector No. 2 (BLU)

   Test circuit	MTR CUT2 (IG1)
   Test point 1	Keyless access control unit connector C (24P) No. 16 (GRN)
   Test point 2	Electric steering lock 12P connector No. 4 (GRN)

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

   Is there continuity?

   YES 

   Faulty electric steering lock, replace the steering lock . If the DTC is still present, replace the keyless access control unit .

   NO 

   Repair an open or high resistance in the wire.