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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control System (With VDC) >> DTC/Circuit Diagnosis >> DTC C1138: 4WAS System >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC Display Item Malfunction detected condition Possible causes
C1138 4WAS CIRCUIT When a malfunction is detected in 4WAS system.
  • 4WAS control unit
  • ABS actuator and electric unit (control unit)
  • CAN communication line
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