Honda HR-V: DTC B12C7 Electric Steering Lock Motor Circuit Failure
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.
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.
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.
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.
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:
Removal & Installation
1. Transmission Assembly - Remove
2. Drive Plate Assembly - Remove
Fig. 10: Drive Plate Bolt With Torque Specifications
Remove the drive plate (A) with the washer (B).
3. All Removed Parts - Install
Install the parts in the reverse order of removal.
NOTE: Install
FUSE TO COMPONENTS INDEX
12 Volt Battery Terminal Fuse Box (A)
*1: With keyless access system
*2: AWD
*3: With rear accessory power socket
*4: With console accessory power socket
Under-Hood Fuse/Relay Box (B)
*1: With keyless access system
*2: Without climate control
*3: CVT
*4: With heated winds