Honda HR-V Owners & Service Manuals

Honda HR-V: DTC Troubleshooting 81-13: Modulator-Control Unit Internal Circuit Malfunction

Honda HR-V (2015-2021) Service Manual / Brakes / VSA System - Diagnostics / DTC Troubleshooting / DTC Troubleshooting 81-13: Modulator-Control Unit Internal Circuit Malfunction

NOTE: Before you troubleshoot, review the general troubleshooting information.

VSA System - Diagnostics

1. Problem verification:

  1. Turn the vehicle to the ON mode.
  2. Clear the DTC with the HDS.
  3. Turn the vehicle to the OFF (LOCK) mode.
  4. Test-drive the vehicle.

NOTE: Drive the vehicle on the road, not on a lift.

  1. Check for DTCs with the HDS.

VSA System - Diagnostics

Is DTC 81-13 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):

  1. Update the VSA modulator-control unit if it does not have the latest software.
  2. Turn the vehicle to the OFF (LOCK) mode.
  3. Test-drive the vehicle.

NOTE: Drive the vehicle on the road, not on a lift.

  1. Check for DTCs with the HDS.

VSA System - Diagnostics

Is DTC 81-13 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 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 VS

     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 bu

     DTC Troubleshooting 83-11, 83-12: PCM (Engine) Malfunction, PCM (AT/CVT) Malfunction

    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

    SEE MORE:

     DTC Troubleshooting 31-11, 32-11, 33-11, 34-11, 35-11, 36-11, 37-11, 38-11: ABS Solenoid Valve Malfunction

    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. Check for DTCs with the HDS. Is DTC 31-11, 32-11, 33-11, 34-11,

     Transmission Fluid Temperature Sensor Test (CVT)

    Test 1. Vehicle - Lift 2. Engine Undercover - Remove (With 2WD) 3. Transmission Fluid Temperature Sensor - Test Disconnect the connector (A).NOTE: To prevent damage, cover the connector using a shop towel. Check the connector for corrosion, dirt, or oil, and clean or repair if necessary.

    © 2019-2025 Copyright www.hohrv2.com