DTC B12D5

DTC B12D5  : Electric Steering Lock Power Output Circuit Malfunction

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

DTC (Power Control Unit)

NOTE:  If any abnormality occurs in the electric steering lock function, the DTC check operation of the HDS will be different from standard procedures. Retrieve the DTC by following on the HDS display.

1. Problem verification

   -1. Clear the DTCs with the HDS.

   -2. Perform the engine starting procedure 5 times repeatedly.

   -3. Turn the vehicle to the ON mode and wait for 3 seconds.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC
   B12D5 Electric steering lock power output circuit malfunction

   Is DTC B12D5 indicated?

   YES 

   Go to step 2.

   NO 

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

2. Shorted wire check (ESL PWR line to ground)

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

   -2. Disconnect the following connectors.

   Body control module connector C (66P)

   Electric steering lock 12P connector

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

   Test condition	Vehicle OFF (LOCK) mode Body control module connector C (66P): disconnected Electric steering lock 12P connector: disconnected
   Test point 1	Electric steering lock 12P connector (female terminals) No. 5:
   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 ESL PWR wire is not shored to ground. Go to step 3.

3. Shorted wire check (ESL PWR line to power)

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

   Test condition	Vehicle OFF (LOCK) mode Body control module connector C (66P): disconnected Electric steering lock 12P connector: disconnected
   Test point 1	Electric steering lock 12P connector (female terminals) No. 5:
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   Repair a short to power in the wire.

   NO 

   The ESL PWR wire is not shorted to power. Go to step 4.

4. Body control module internal short check

   -1. Connect the following connector.

   Body control module connector C (66P)

   -2. Measure the voltage 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. 5:
   Test point 2	Body ground

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

   Is there 4.37 V or more?

   YES 

   Replace the body control module .

   NO 

   Go to step 5.

5. Open wire check (ESL PWR line)

   -1. 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. 5:
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   The ESL PWR wire is not open. Go to step 6.

   NO 

   Repair an open or high resistance in the wire.

6. Electric steering lock check (substitution)

   -1. Substitute a known-good electric steering lock .

   -2. Check for DTCs with the HDS.

   DTC Description	DTC
   B12D5 Electric steering lock power output circuit malfunction

   Is DTC B12D5 indicated?

   YES 

   Replace the body control module .

   NO 

   Replace the original electric steering lock .