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Home >> Infiniti >> 2011 >> M37 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 261 (Steering Control System (With 4WAS)) >> DTC/Circuit Diagnosis >> DTC C1684, C1685: 4WAS Main Control Unit Communication >> Special Repair Requirement
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Special Repair Requirement

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.

Before replacing 4WAS front control unit, record the self-diagnosis results (history).

CAUTION:
  • Never erase the memory (history) of self-diagnosis results when replacing 4WAS front control unit after diagnosis.
  • Erase the memory of the self-diagnosis results (record) after printing out or recording all the values of "DATA MONITOR".
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