LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2013 >> M56 x >> Repair and Diagnosis >> Steering >> Manual Steering >> Steering Control System (With 4WAS) >> DTC/Circuit Diagnosis >> DTC C1684, C1685: 4WAS Main Control Unit Communication >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC Display Item Malfunction detected condition Possible cause
C1684 4WAS MAIN ECU COMM 4WAS communication line(1) data communication error is detected. (An error signal is detected from 4WAS main control unit.) 4WAS communication line(1)/4WAS main control unit/4WAS front control unit error
C1685 4WAS MAIN ECU COMM 4WAS communication line(1) data communication error is detected. (An error signal is detected from 4WAS main control unit.) 4WAS communication line(1)/4WAS main control unit/4WAS front control unit error
(1) Communication line between 4WAS front control unit and 4WAS main control unit
scientia non olet · About LEMON Manuals