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DTC Description
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
C1F5983EPS control unit
(Electric power steering control unit)
Diagnosis conditionWhen electric motor switch is ON
Signal (terminal)CAN communication signal
ThresholdADAS control unit 2 received invalid data from EPS control unit via CAN communication
Diagnosis delay time1 second or less
 
 
POSSIBLE CAUSE
EPS control unit
 
 
FAIL-SAFE
The following systems are canceled.
  • Vehicle-to-vehicle distance control mode
  • Conventional (fixed speed) cruise control mode
  • Steering assistance function
 
 
CONFIRMATION PROCEDURE
1.CHECK DTC PRIORITY
If DTC “C1F59-83” is displayed with Network-DTC, first diagnose the Network-DTC.
Is applicable DTC detected?
Perform diagnosis of applicable. Refer to DTC IndexDTC Index.
.
 
2.PERFORM DTC CONFIRMATION PROCEDURE
  1. Turn the electric motor switch ON.
  2. Perform “Read All DTCs” with M.U.T.-III SE.
  3. Check if the “C1F59-83” is detected as the current malfunction in "Diagnostic Trouble Code" of “ICC/ADAS 2”.
Is “C1F59-83” detected as the current malfunction?
Refer to DTC Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END