Honda HR-V: DTC Troubleshooting 81-20: Acceleration Sensor (Inside of Modulator-Control
Unit) Internal Circuit Malfunction
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 built into the VSA modulator-control
unit.
- Before troubleshooting, check the VSA modulator-control unit for proper
mounting. Improper mounting
of the VSA modulator-control unit may set this code.
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1. Problem verification:
- Park the vehicle on a flat and level surface.
- Turn the vehicle to the ON mode.
- Clear the DTC with the HDS.
- Turn the vehicle to the OFF (LOCK) mode, then the ON mode.
- Test-drive the vehicle at 6 mph (10 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
- Check for DTCs with the HDS.
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Is DTC 81-20 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.
- Test-drive the vehicle at 6 mph (10 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
- Check for DTCs with the HDS.
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Is DTC 81-20 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:
Troubleshoot any PGM-FI, AT or CVT DTCs first.
Before you troubleshoot, review the general troubleshooting information.
VSA will set 83-11 if any PGM -FI DTC's exist.
VSA will set 83-12 if
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.
Refer to the DTC code shown on the display, and then inspect the
connectors and terminals based on the
instructions
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 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