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DTC 86-15: F-CAN Communication With Yaw Rate-Acceleration Sensor Malfunction

NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION  ).
  • Troubleshoot any fuel and emissions DTCs first.
  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0) and then back to ON (II).
  4. Check for DTCs with the HDS.

    Is DTC 86-15 indicated? 

    YES  -If DTC 86-11 is indicated at the same time, do the DTC 86-11 troubleshooting first (see DTC 86-11: F-CAN BUS-OFF MALFUNCTION  ). If DTC 86-11 is not indicated, go to step 5.

    NO  -If any other DTCs are indicated, go to the indicated DTCS TROUBLESHOOTING . If DTCs are not indicated, intermittent failure, the system is OK at this time. Refer to INTERMITTENT FAILURES TROUBLESHOOTING 

  5. Turn the ignition switch to LOCK (0).
  6. Disconnect the yaw rate-lateral acceleration sensor 5P connector (see YAW RATE-LATERAL ACCELERATION SENSOR REPLACEMENT  ).
  7. Disconnect the VSA modulator-control unit 36P connector (see step  3 on ).
  8. Check for continuity between the VSA modulator-control unit 36P connector terminal and the yaw rate-lateral acceleration sensor 5P connector terminal (see table).
    Sign VSA Modulator-Control Unit 36P Connector Terminal Yaw Rate-Lateral Acceleration Sensor 5P Connector Terminal
    F-CAN L No. 1 No. 4
    F-CAN H No. 14 No. 3
    Fig 1: Checking Continuity Between VSA Modulator-Control Unit 36P Connector Terminal And Yaw Rate-Lateral Acceleration Sensor 5P Connector Terminal
    G08083020Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Go to step 9.

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

  9. Turn the ignition switch to ON (II).
  10. Measure the voltage between yaw rate-lateral acceleration sensor 5P connector terminal No. 1 and body ground.
    Fig 2: Measuring Voltage Between Yaw Rate-Lateral Acceleration Sensor 5P Connector Terminal No. 1 And Body Ground
    G08083021Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  -Go to step 11.

    NO  -Repair an open in the wire between the No. 11 (7.5 A) fuse in the under-dash fuse/relay box and the yaw rate-lateral acceleration sensor.

  11. Turn the ignition switch to LOCK (0).
  12. Reconnect all connectors.
  13. Turn the ignition switch to ON (II).
  14. Measure the voltage between yaw rate-lateral acceleration sensor 5P connector terminal No. 5 and body ground.
    Fig 3: Measuring Voltage Between Yaw Rate-Lateral Acceleration Sensor 5P Connector Terminal No. 5 And Body Ground
    G08083022Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there 0.1 V or less? 

    YES  -Replace the yaw rate-lateral acceleration sensor (see YAW RATE-LATERAL ACCELERATION SENSOR REPLACEMENT  ).

    NO  -Repair an open in the wire between the yaw rate-lateral acceleration sensor and body ground (G502).

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