7-6

Active Damper System DTC Troubleshooting: 7-6

DTC 7-6: Active Damper Control Unit Internal Circuit Malfunction (Fail Safe Relay Stuck On)

NOTE: The fail safe relay is built into the active damper control unit.

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

2. Check that the all four damper coil 2P connectors are properly connected.

Are the connectors OK?
YES - Go to step 3.

NO - Reconnect and check the connectors, then go to step 12.


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

4. Clear the DTC with the HDS.

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

6. Start the engine, and wait 5 seconds.

7. Check for DTCs with the HDS.

Is DTC 7-6 indicated?
YES - Go to step 8.

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


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

9. Disconnect active damper control unit connector A (20P).

10. Check for continuity between the active damper control unit connector A (20P) terminals individually (see table).





Is there continuity?
YES - Check for poor or loose connections in the active damper control unit, clean body ground terminals G302 and G401 If the connections and the terminal are OK, replace the active damper control unit,. Service and Repair then go to step 11.

NO - Repair open in the wires between the damper coil and active damper control unit, then go to step 11.






11. Reconnect all connectors.

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 in the ACTIVE DAMPER SYSTEM INSPECTION MENU with the HDS.

17. Check for DTC's with the HDS.

Is any DTC indicated?
YES - Go to the indicated DTC's troubleshooting.

NO - Troubleshooting is complete.