2-9

Active Damper System DTC Troubleshooting: 2-9

DTC 2-9:

Left-front Suspension Stroke Sensor Signal Circuit Low Voltage

NOTE: If DTC 8-3 is stored at the same time as DTC 2-9, troubleshoot DTC 8-3 first, then recheck for DTC 2-9.

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 2-9 indicated?

YES -

Go to step 6.

NO -

Intermittent failure, the system is OK at this time. Check for poor or loose connections between the suspension stroke sensor and the active damper control unit.�

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

7. Disconnect the left-front suspension stroke sensor 3P connector.

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

9. Disconnect the headlight leveling control unit 16P connector Testing and Inspection.

10. Check for continuity between body ground and active damper control unit connector A (20P) terminal No. 15.





Is there continuity?

YES -

Repair a short to body in the wire between the left-front suspension stroke sensor, the headlight leveling control unit, and the active damper control unit.�

NO -

Go to step 11.

11. Check for continuity between left-front suspension stroke sensor 3P connector terminals No. 2 and No. 3.





Is there continuity?

YES -

Repair a short in the wires between the left-front suspension stroke sensor and the active damper control unit.�

NO -

Go to step 12.

12. Check for continuity between active damper control unit connector A (20P) terminal No. 15 and left-front suspension stroke sensor 3P connector terminal No. 2.





Is there continuity?

YES -

Go to step 13.

NO -

Repair an open in the wire between the left-front suspension stroke sensor and the active damper control unit.�

13. Check for continuity between headlight leveling control unit 16P connector terminal No. 13 and left-front suspension stroke sensor 3P connector terminal No. 1.





Is there continuity?

YES -

Go to step 14.

NO -

Repair an open in the wire between the left-front suspension stroke sensor and the headlight leveling control unit.�

14. Reconnect the headlight leveling control unit 16P connector.

15. Reconnect the active damper control unit connector A (20P).

16. Start the engine, and wait 5 seconds.

17. Measure the voltage between body ground and left-front suspension stroke sensor 3P connector terminal No. 1.





Is there about 5 V?

YES -

Replace the suspension stroke sensor Service and Repair.�

NO -

Check the headlight leveling control system. If necessary, substitute a known-good headlight leveling control unit.�