Honda HR-V: DTC B1129 Driver's Door Knob Switch Input Circuit Malfunction
(Simultaneous Input of Lock and Unlock Signal)
DTC (MICU)
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. Keyless/power door locks/security system check:
- With the driver's door lock knob switch in the lock position, check the
parameter(s) below with the HDS.
Are both information indicators ON?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time.
2. Determine possible failure area (driver's door latch, others):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Driver's door latch 10P connector
- Turn the vehicle to the ON mode.
- Check the parameter(s) below with the HDS.
Is either information indicator ON?
YES
Go to step 3.
NO
Faulty driver's door lock knob switch; replace the driver's door latch.
3. Shorted wire check (DR SILCON UNLOCK, DR SILCON LOCK lines):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Under-dash fuse/relay box connector D (24P)
- Check for continuity between test points 1 and 2 individually.
Is there continuity?
YES
Repair a short to ground in the wire(s).
NO
The DR SILCON UNLOCK and DR SILCON LOCK wires are OK. Faulty MICU; replace
the underdash
fuse/relay box.
READ NEXT:
DTC (MICU)
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
Diagn
DTC (MICU)
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
Diagn
DTC (MICU)
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
Diagn
SEE MORE:
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If so, verify
that all the required components were replaced with new components of the
correct part number,
and that they were properly installed.
Before doing this troubleshooting procedure, rev
NOTE: Before you troubleshoot, review the general troubleshooting
information.
1. Problem verification:
Turn the vehicle to the ON mode.
Clear the DTC with the HDS.
Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
Do the BRAKE LIGHT RELAY function test with the HDS.
Check for DT