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. Press the engine start/stop button to select the OFF mode.

2. Disconnect all four damper coil 2P connectors: Front, rear, then reconnect the connectors.

3. Press the engine start/stop button to select the ON mode.

4. Clear the DTC with the HDS.

5. Press the engine start/stop button to select the OFF mode.

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. Refer to intermittent failures troubleshooting.

8. Press the engine start/stop button to select the OFF mode.

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

10. Measure the resistance between the appropriate active damper control unit connector A (20P) terminals.









Is the resistance between 0.6-2.0 Ohms?

YES -

Check for poor or loose connections in the active damper control unit, clean body ground terminals G203 and G604. If the connections and the terminal are OK, replace the active damper control unit Service and Repair, then go to step 11.

NO -

Repair an open in the wires between the damper coil and active damper control unit, then go to step 11.

11. Reconnect all connectors.

12. Press the engine start/stop button to select the ON mode.

13. Clear the DTC with the HDS.

14. Press the engine start/stop button to select the OFF mode.

15. Start the engine.

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

17. Check for DTC's with the HDS.

Are any DTCs indicated?

YES -

Go to the indicated DTCs troubleshooting.

NO -

Troubleshooting is complete.