Honda HR-V: DTC Troubleshooting 25-120: Yaw Rate Sensor (Inside of Modulator-Control Unit) Stuck
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.
- 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 25-120 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. Yaw rate sensor performance check:
- Turn the vehicle to the OFF (LOCK) mode.
- Test-drive the vehicle.
NOTE: Drive the vehicle on the road, not on a lift.
- Check the parameter(s) below with the HDS while driving around corners.
NOTE: Use the HDS with on-board snapshot.
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Does the indicated value change?
YES
The system is OK at this time.
NO
Go to step 3.
3. 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 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 25-120 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:
DTC Troubleshooting 25-121, 26-121, 28-121: Sensor (Inside of
Modulator-Control Unit) Output Signal 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 VS
DTC Troubleshooting 26-120: Lateral Acceleration Sensor (Inside of
Modulator-Control Unit) Stuck
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
DTC Troubleshooting 27-12, 27-13: Steering Angle Sensor Stuck,
Output Signal Malfunction
NOTE:
This DTC may set if the vehicle is driven on a lift (wheels are turning)
and the steering wheel is turned
significantly. This is normal, ignore it.
Before you troubleshoot, review the gene
SEE MORE:
Handsfreelink System Symptom Troubleshooting - HFL Does Not Respond (Without
Navigation, Display Audio Type (7-inch Screen) )
NOTE:
Check the vehicle 12 volt battery condition first.
You must be able to duplicate the customer's concern to successfully
diagnose the problem. If you cannot duplicate the issue, have the customer
demonstrate it.
Check the connectors for poor connections or loose terminals.
1. HFL switc
Check
TRANSMISSION FLUID (HCF-2) LEVEL CHECK (CVT)
Check
NOTE:
Keep all foreign particles out of the transmission.
Check the transmission fluid level after the shift lever operation
without spending too much time.
1. Vehicle - Lift Set
2. Engine Undercover - Remove (With 2WD)
3. Transmission Fluid L
