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DTC Description
 
 
DTC DETECTION LOGIC
DTC M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
C1F004B CONTROL UNIT
(Control unit)
Diagnosis condition
  • When engine is running
  • When AEB system is ON
Signal (terminal) —
Threshold Temperature detected by the temperature sensor integrated in ADAS control unit 2 remains more than 105 °C (221 °F)
Diagnosis delay time 5 seconds or more
 
 
POSSIBLE CAUSE
Temperature around the ADAS control unit 2 becomes extremely high
 
 
FAIL-SAFE
The following systems are canceled.
  • Vehicle-to-vehicle distance control mode
  • Conventional (fixed speed) cruise control mode
  • Steering wheel assistance function
  • AEB
  • RAB
  • PFCW
  • LDW
  • LDP
  • BSW
  • Active Blind Spot Assist [ABSA]
  • RCTA
  • TSR
  • DAA
 
 
CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
  1. Turn the ignition switch OFF.
  2. Wait for 10 minutes or more.
  3. Start the engine.
  4. Turn the AEB system ON.
  5. Perform “Read All DTCs” with M.U.T.-III SE.
  6. Check if the “C1F00-4B” is detected as the current malfunction in “Self Diagnostic Result” of “ACC/ADAS 2”.
Is “C1F00-4B” 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