1-2
Active Damper System DTC Troubleshooting: 1-1, 1-2, 1-3
DTC 1-1:
Front Vertical Acceleration Sensor Circuit High Voltage
DTC 1-2:
Right-rear Vertical Acceleration Sensor Circuit High Voltage
DTC 1-3:
Left-rear Vertical Acceleration Sensor Circuit High 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 1-1, 1-2, or 1-3 indicated?
YES -
Go to step 6.
NO -
Intermittent failure, the system is OK at this time. Check for poor or loose connections between the vertical acceleration sensor and the active damper control unit.�
6. Turn the ignition switch to LOCK (0).
7. Disconnect active damper control unit connector B (14P) Service and Repair.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between body ground and the appropriate active damper control unit connector B (14P) terminal individually (see table).
Is there more than 0.5 V?
YES -
Repair a short to power in the wire between the appropriate vertical acceleration sensor and the active damper control unit, then go to step 14.
NO -
Go to step 10.
10. Turn the ignition switch to LOCK (0).
11. Disconnect the appropriate vertical acceleration sensor 3P connector.
12. Check for continuity between the appropriate vertical acceleration sensor terminals No. 1 and No. 3.
DTC 1-1
DTC 1-2
DTC 1-3
Is there continuity?
YES -
Repair a short in the wires between the appropriate vertical acceleration sensor and the active damper control unit.�
NO -
Go to step 13.
13. Check for continuity between active damper control unit connector B (14P) terminal No. 11 and appropriate vertical acceleration sensor 3P connector terminal No.2 (see table).
Is there continuity?
YES -
Go to step 15.
NO -
Repair an open in the wire between the appropriate vertical acceleration sensor and the active damper control unit.�
14. Turn the ignition switch to LOCK (0).
15. Reconnect all connectors.
16. Do the appropriate vertical acceleration sensor inspection Testing and Inspection.
Does the vertical acceleration sensor indicate OK?
YES -
Go to step 17.
NO -
Replace the appropriate vertical acceleration sensor Service and Repair.�
17. Clear the DTC with the HDS.
18. Turn the ignition switch to LOCK (0).
19. Start the engine, and wait 5 seconds.
20. Check for DTCs with the HDS.
Is DTC 1-1, 1-2, or 1-3 indicated?
YES -
Substitute a known-good active damper control unit and retest. If the DTC goes away, replace the original active damper control unit Service and Repair.�
NO -
Troubleshooting is complete.�