8-6

Active Damper System DTC Troubleshooting: 8-6

DTC 8-6: F-CAN Malfunction (Active Damper Control Unit Lost Communication With VSA Modulator-control Unit)

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0).

4. Start the engine, and wait 5 seconds.

5. Check for DTCs with the HDS.

Is DTC 8-6 indicated?
YES - Go to step 6.

NO - Intermittent failure, the system is OK at this time. Check for poor or loose connections between the VSA modulator-control unit and the active damper control unit.


6. Check for VSA system DTCs with the HDS. Initial Inspection and Diagnostic Overview

Are any DTC indicated?
YES - Go to the indicated VSA system DTC's troubleshooting, then go to step 14.

NO - Go to step 7.


7. Turn the ignition switch to LOCK (0).

8. Wait 30 seconds or more.

9. Disconnect the VSA modulator-control unit 46P connector.

10. Disconnect active damper control unit connector B (14P) connector.

11. Check for continuity between the active damper control unit connector B (14P) terminals and the VSA modulator-control unit 46P connector terminals individually (see table).





Is there continuity?
YES - Go to step 12

NO - Repair open in the wire between the VSA modulator-control unit and the active damper control unit.






12. Substitute a known-good active damper control unit. Service and Repair

13. Reconnect all connectors.

14. Turn the ignition switch to ON (II).

15. Clear the DTC with the HDS.

16. Turn the ignition switch to LOCK (0).

17. Start the engine, and wait 5 seconds.

18. Check for DTCs with the HDS.

Is DTC 8-6 indicated?
YES - Replace the VSA modulator-control unit. Service and Repair

NO - Replace the original active damper control unit. Service and Repair