DTC 86-11: F-CAN Bus-Off 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.
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Turn the ignition switch to LOCK (0) and then back to ON (II).
- Check for DTCs with the HDS.
Is DTC 86-11 indicated?
YES -Go to step 5.
NO -Intermittent failure, the system is OK at this time. Refer to INTERMITTENT FAILURES TROUBLESHOOTING
- Turn the ignition switch to LOCK (0).
- Short the SCS line with the HDS.
- Disconnect ECM/PCM connector A (49P) ECM/PCM REPLACEMENT
- Disconnect the VSA modulator-control unit 36P connector (see step 3 ).
- Check for continuity between VSA modulator-control unit 36P connector terminal and ECM/PCM connector A (49P) terminal (see table).
Sign VSA Modulator-Control Unit 36P Connector Terminal ECM/PCM Connector A (49P) Terminal F-CAN L No. 1 A4 F-CAN H No. 14 A3 Fig 1: Checking Continuity Between VSA Modulator-Control Unit 36P Connector Terminal And ECM/PCM Connector A (49P) TerminalCourtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 10.
NO -Repair an open in the wire between the ECM/PCM and the VSA modulator-control unit.
- Reconnect all connectors.
- Update the VSA modulator-control unit if it does not have the latest software (see VSA MODULATOR-CONTROL UNIT UPDATE ).
- Turn the ignition switch to LOCK (0) and then back to ON (II).
- Check for DTCs with the HDS.
Is DTC 86-11 indicated?
YES -Check for loose terminals in the VSA modulator-control unit 36P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit, (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCS TROUBLESHOOTING .