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DTC Description
noteWhen the chassis number writing, MAC KEY writing or vehicle specification writing is carried out, DTC No. U2252-08 may be set in the ADAS control unit 2. Therefore, carry out the following procedures after the writing.
  1. Check that the DTC No. C1F04-61 is set.
    • When the DTC is not set: End the diagnosis.
    • When the DTC is set as a current trouble: Carry out the following procedures.
      1. Start the engine (set the drive mode to battery charge mode, or start the continuous idling mode) or drive the vehicle at 5 km/h or more.
      2. Change the power supply mode of the electric motor switch to OFF.
      3. Change the power supply mode of the electric motor switch to ON.
      4. Check whether the DTC No. C1F04-61 is set in the ADAS control unit 2.
        • When the DTC is set as a current trouble: Carry out the diagnosis procedures for the DTC No. C1F04-61, then go to Step 2.
        • When the DTC is set as a past trouble: Erase the DTC, then go to Step 2.
 
 
DTC DETECTION LOGIC
DTC M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
C1F04 61ACC command value failure
(Adaptive Cruise Control system command value failure)
Diagnosis condition READY Indicator: ON
Signal (terminal) —
Threshold ACC system detects malfunction
Diagnosis delay time 0.5 seconds or more
 
 
POSSIBLE CAUSE
  • BCM
  • ADAS control unit 2
  • PHEV-ECU
 
 
FAIL-SAFE
The following systems are canceled.
  • Vehicle-to-vehicle distance control mode
  • Conventional (fixed speed) cruise control mode
  • Steering wheel assistance function
  • FCM
  • Rear AEB
 
 
CONFIRMATION PROCEDURE
1.CHECK DTC PRIORITY
If DTC “C1F04-61” 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. Change the power supply mode of the electric motor switch to ON (READY indicator: ON).
  2. Turn the FCM system ON.
  3. Perform “Read All DTCs” with M.U.T.-III SE.
  4. Check if the “C1F04-61” is detected as the current malfunction in "Diagnostic Trouble Code" of “ICC/ADAS 2”.
Is “C1F04-61” detected as the current malfunction?
Refer to DTC Diagnosis ProcedureDiagnosis Procedure.
-1 To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2 Confirmation after repair: INSPECTION END