Honda HR-V: DTC Troubleshooting 81-11: Modulator-Control Unit Internal Circuit
Malfunction
NOTE: Before you troubleshoot, review the general troubleshooting
information.
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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.
- Check for DTCs with the HDS.
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Is DTC 81-11 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Refer to intermittent
failures troubleshooting.
2. VSA modulator-control unit check (update):
- Update the VSA modulator-control unit if it does not have the latest
software.
- Turn the vehicle to the OFF (LOCK) mode, then the ON mode.
- Check for DTCs with the HDS.
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Is DTC 81-11 indicated?
YES
Check for loose terminals in the VSA modulator-control unit 21P connector. If
the VSA modulator-control unit was updated and the symptom/indication is still
present, replace the VSA modulator-control
unit.
NO
Troubleshooting is complete. If any other DTCs are indicated, go to the
indicated DTCs troubleshooting.
READ NEXT:
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 (
NOTE:
Before you troubleshoot, review the general troubleshooting information.
The yaw rate-acceleration sensor is built into the VSA modulator-control
unit.
Before troubleshooting, check the VS
NOTE:
Before you troubleshoot, review the general troubleshooting information.
While doing this troubleshooting, avoid vibration or shaking of the
vehicle.
The yaw rate-acceleration sensor is bu
SEE MORE:
INSPECTION & ADJUSTMENT
WHEEL ALIGNMENT
Check
1. Pre-Alignment - Check
For proper inspection and adjustment of the wheel alignment, do these checks:
Release the parking brake to avoid an incorrect measurement.
Make sure the suspension is not modified.
Make sure the fuel tank is full and the
NOTE : Before you troubleshoot, review the how to troubleshoot information -
Refer to: How to Troubleshoot
the Forward Collision Warning (FCW), or How to Troubleshoot the Lane Departure
Warning (LDW).
DTCs (FCW/LDW)
1. Problem verification.
Turn the vehicle to the ON mode.
Clear the DTC with t