Honda HR-V: DTC Troubleshooting 81-19: Yaw Rate Sensor (Inside of Modulator-Control
Unit) Internal Circuit Malfunction
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 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:
- 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.
- Test-drive the vehicle at 9 mph (15 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
- Stop the vehicle, keep the ON mode, and wait for 30 seconds or more.
- Check for DTCs with the HDS.
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Is DTC 81-19 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.
- Test-drive the vehicle at 9 mph (15 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
- Stop the vehicle, keep the ON mode, and wait for 30 seconds or more.
- Check for DTCs with the HDS.
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Is DTC 81-19 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.
While doing this troubleshooting, avoid vibration or shaking of the
vehicle.
The yaw rate-acceleration sensor is bu
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 (
SEE MORE:
NOTE:
It is normal for the A/C compressor to turn off under certain
conditions, such as low idle, high engine
coolant temperature, or hard acceleration.
Do not use this troubleshooting procedure if the fans are also
inoperative with the A/C on. Refer to the
symptom troubleshooting index - R
Inspection
NOTE:
This procedure checks the APP sensor in its fully closed position. In
any other position, the APP sensor
stores DTCs which are covered in other troubleshooting procedures.
Check for Pending or Confirmed DTCs with the HDS before doing this
procedure. If any DTCs are
indicate