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DTC 26: Lateral Acceleration Sensor

NOTE: If DTC 27 or 64 is stored at the same time as DTC 26, troubleshoot those DTCs first, then recheck for DTC 26.
  1. Clear the DTC using the HDS (see HOW TO CLEAR DTCS  ).
  2. Disconnect the HDS from the 16P DLC.
  3. Turn the ignition switch OFF, then turn it ON (II) again.
  4. Test-drive the vehicle around a number of corners.
  5. Verify the DTC.

    Is DTC 26 indicated? 

    YES  - Go to step 6.

    NO  - The system is OK at this time. Refer to INTERMITTENT FAILURES  .

  6. Turn the ignition switch OFF.
  7. Disconnect the VSA modulator-control unit 47P connector, steering angle sensor 5P connector, and yaw rate-lateral/longitudinal acceleration sensor 5P connector.
  8. Turn the ignition switch ON (II).
  9. Measure the voltage between body ground and the VSA modulator-control unit 47P connector terminals No. 33, No. 35, and No. 37 individually.
    Fig 1: Measuring Voltage Between Body Ground And VSA Modulator-Control Unit 47P Connector Terminals No. 33, No. 35, And No. 37
    G05498608Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there 0.1 V or more? 

    YES  - Repair short to power in the wire between the VSA modulator-control unit, the yaw rate-lateral/longitudinal acceleration sensor, and the steering angle sensor.

    NO  - Go to step 10.

  10. Turn the ignition switch OFF.
  11. Check for continuity between body ground and the VSA modulator-control unit 47P connector terminals No. 33, No. 35, and No. 37 individually.
    Fig 2: Checking Continuity Between Body Ground And VSA Modulator-Control Unit 47P Connector Terminals No. 33, No. 35, And No. 37
    G05498609Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair short to body ground in the wire between the VSA modulator-control unit, the yaw rate-lateral/longitudinal acceleration sensor, and the steering angle sensor.

    NO  - Go to step 12.

  12. Check for continuity between the VSA modulator-control unit 47P connector terminal No. 35 and yaw rate-lateral/longitudinal acceleration sensor 5P connector terminal No. 2.
    Fig 3: Checking Continuity Between VSA Modulator-Control Unit Terminal No. 35 And Yaw Rate-Lateral/Longitudinal Connector Terminal No. 2
    G05498610Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 13.

    NO  - Repair open in the wire between the VSA modulator-control unit and the yaw rate-lateral/longitudinal acceleration sensor.

  13. Check for continuity between the VSA modulator-control unit 47P connector terminal No. 33 and yaw rate-lateral/longitudinal acceleration sensor 5P connector terminal No. 4.
    Fig 4: Checking Continuity Between VSA Modulator-Control Unit Terminal No. 33 And Yaw Rate-Lateral/Longitudinal Connector Terminal No. 4
    G05498611Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 14.

    NO  - Repair open in the wire between the VSA modulator-control unit and the yaw rate-lateral/longitudinal acceleration sensor.

  14. Check for continuity between the VSA modulator-control unit 47P connector terminal No. 37 and yaw rate-lateral/longitudinal acceleration sensor 5P connector terminal No. 1.
    Fig 5: Checking Continuity Between VSA Modulator-Control Unit Terminal No. 37 And Yaw Rate-Lateral/Longitudinal Connector Terminal No. 1
    G05498612Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 15.

    NO  - Repair open in the wire between the VSA modulator-control unit and the yaw rate-lateral/longitudinal acceleration sensor.

  15. Substitute a known-good yaw rate-lateral/longitudinal acceleration sensor.
  16. Reconnect all of the disconnected connectors.
  17. Clear the DTC using the HDS (see HOW TO CLEAR DTCS  ).
  18. Disconnect the HDS from the 16P DLC.
  19. Turn the ignition switch OFF, then turn it ON (II) again.
  20. Test-drive the vehicle around a number of corners.
  21. Verify the DTC.

    Is DTC 25 indicated? 

    YES  - Check for loose terminals or poor connections at the VSA modulator-control unit 47P connector. If connections are good, replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  ), and recheck.

    NO  - Replace the original yaw rate-lateral/longitudinal acceleration sensor (see YAW RATE-LATERAL/LONGITUDINAL ACCELERATION SENSOR REPLACEMENT  ).

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