2-B

Active Damper System DTC Troubleshooting: 2-B

DTC 2-B: Left-rear Suspension Stroke Sensor Signal Circuit Low Voltage

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

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-B 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-rear suspension stroke sensor 3P connector.

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

9. Disconnect the headlight leveling control unit 16P connector.

10. Check for continuity between body ground and active damper control unit connector B (14P) terminal No. 7.

Is there continuity?
YES - Go to step 11.

NO - Repair short to body ground in the wire between the left-rear suspension stroke sensor, the headlight leveling control unit, and the active damper control unit.






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

Is there continuity?
YES - Repair short in the wires between the left-rear suspension stroke sensor and the active damper control unit.

NO - Go to step 12.






12. Check for continuity between active damper control unit connector B (14P) terminal No. 7 and left-rear suspension stroke sensor 3P connector terminal No. 2.

Is there continuity?
YES - Go to step 13.

NO - Repair open in the wire between the left-rear suspension stroke sensor and the active damper control unit.






13. Check for continuity between headlight leveling control unit 16P connector terminal No. 5 and left-rear suspension stroke sensor 3P connector terminal No. 1.

Is there continuity?
YES - Go to step 14.

NO - Repair open in the wire between the left-rear 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 B (14P).

16. Start the engine, and wait 5 seconds.

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

Is there about 5 V?
YES - Replace the suspension stroke sensor. Suspension Stroke Sensor Replacement (With Active Damper System)

NO - Check the headlight leveling control system. If necessary, substitute a known-good headlight leveling control unit.