Honda HR-V: DTC B12C7 Electric Steering Lock Motor Circuit Failure
![Keyless Access Power Control Unit - Diagnostics](images/books/1097/index 35(27).png)
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 - Refer to: Body Electrical Troubleshooting - B-CAN System
Diagnosis Test Mode
A - Initial Communication and DTC Checks.
1. Problem verification:
- Clear the DTCs with the HDS.
Clear DTCs
- Do this procedure 10 times: Turn the vehicle to the OFF (LOCK) mode,
ACCESSORY mode, ON
mode, and OFF (LOCK) mode.
- Check for DTCs with the HDS.
![Keyless Access Power Control Unit - Diagnostics](images/books/1097/index 36(27).png)
Is DTC B12C7 indicated?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for loose or poor
connections.
2. Open wire check (GND line)
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Electric steering lock 12P connector
- Check for continuity between test points 1 and 2.
![Keyless Access Power Control Unit - Diagnostics](images/books/1097/index 37(27).png)
![Keyless Access Power Control Unit - Diagnostics](images/books/1097/index 38(27).png)
Is there continuity?
YES
The GND wire is OK. Go to step 3.
NO
Repair an open or high resistance in the ground wire or poor ground (G401).
3. Shorted wire check (MTR CUT1 (CONT), MTR CUT2 (IG1) lines):
- Disconnect the following connector.
Keyless access control unit connector B (36P)
- Check for continuity between test points 1 and 2 individually.
![Keyless Access Power Control Unit - Diagnostics](images/books/1097/index 39(27).png)
![Keyless Access Power Control Unit - Diagnostics](images/books/1097/index 40(27).png)
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 4.
4. Open wire check (MTR CUT1 (CONT), MTR CUT2 (IG1) lines):
Check for continuity between test points 1 and 2 respectively.
![Keyless Access Power Control Unit - Diagnostics](images/books/1097/index 41(27).png)
![Keyless Access Power Control Unit - Diagnostics](images/books/1097/index 42(27).png)
Is there continuity?
YES
The MTR CUT1 (CONT) and MTR CUT2 (IG1) wires are OK. 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.
READ NEXT:
NOTE: Refer to the DTC code shown on the display, and then inspect the
connectors and terminals based on
the instructions in the table below.
DTC (Power Control Unit)
NOTE:
If you are troubleshoot
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 - Refer to: Body Electrical Troubleshooting - B-
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 - Refer to: Body Electrical Troubleshooting - B-CAN
SEE MORE:
■Protecting Infants
An infant must be properly restrained in a rear-facing, reclining child seat
until the
infant reaches the seat maker's weight or height limit for the seat, and the
infant is
at least one year old.
■ Positioning a rear-facing child seat
Child seats must be placed and secured
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 - Refer to: Body
Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial
Communication and DTC Checks,.
Before troubleshooting