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Home >> Nissan-Datsun >> 2012 >> Cube Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 122 (Active Damper System) >> DTC Troubleshooting >> DTC 7-6: Active Damper Control Unit Internal Circuit Malfunction (Fail Safe Relay Stuck On)

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

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
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. Refer to intermittent failures troubleshooting (see INTERMITTENT FAILURES  ).

  8. Turn the ignition switch to LOCK (0).
  9. Disconnect active damper control unit connector A (20P) (see ACTIVE DAMPER CONTROL UNIT REPLACEMENT  ).
  10. Measure resistance between the appropriate active damper control unit connector A (20P) terminals (see table).
    Appropriate Damper Coil Active Damper Control Unit Connector A Terminal
    Right-front No. 6 No. 16
    Left-front No. 4 No. 14
    Right-rear No. 2 No. 12
    Left-rear No. 1 No. 11
    Fig 1: Measuring Resistance Between Active Damper Control Unit Connector A (20P) Terminals
    G08052932Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is the resistance between 0.6-2.0 Ω? 

    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 (see ACTIVE DAMPER CONTROL UNIT REPLACEMENT  ), 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. 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 TEST in the FUNCTIONAL TESTS 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.