6-9

Active Damper System DTC Troubleshooting: 6-9

DTC 6-9:

Active Damper Control Unit Power Source Circuit (+B) Low Voltage

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 6-9 indicated?

YES -

Go to step 6.

NO -

Intermittent failure, the system is OK at this time. Check for poor or loose connections between the main under-hood fuse box and the active damper control unit. Check for a loose or poor ground at G302 and G401.�

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

7. Check the No. 7 (30 A) fuse in the main under-hood fuse box.

Is the fuse blown?

YES -

Remove the fuse, then go to step 8.

NO -

Reinstall the fuse, then go to step 11.

8. Disconnect active damper system control unit connector A (20P) Service and Repair.

9. Check for continuity between body ground and active damper system control unit connector A (20P) terminal No. 10.





Is there continuity?

YES -

Repair a short to body ground in the wire between the No. 7 (30 A) fuse in the main under-hood fuse box and the active damper system control unit.�

NO -

Install a new No. 7 (30 A) fuse in the main under-hood fuse box, then go to step 10.

10. Reconnect active damper system control unit connector A (20P).

11. Measure the voltage between active damper control unit connector A (20P) terminals No. 10 and No. 18.





Is there battery voltage?

YES -

Replace the active damper control unit Service and Repair, then go to step 12.

NO -

Repair an open in the wire between the active damper control unit and the No. 7 (30 A) fuse in the main under-hood fuse box, or an open or poor connection between active damper control unit and body ground (G401), then go to step 12.

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

13. Clear the DTC with the HDS.

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

15. Start the engine.

16. Do the DAMPER FORCE OPERATION TEST in the FUNCTIONAL TESTS MENU with the HDS.

17. Check for DTCs with the HDS.

Is any DTC indicated?

YES -

Go to the indicated DTC's troubleshooting.

NO -

Troubleshooting is complete.�