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DTC Description
 
 
DTC DETECTION LOGIC
DTC Description
M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
C18F34BMotor high temperatureDiagnosis conditionElectric motor switch ON
Signal (terminal)–
ThresholdThe temperature of the electric driven intelligent brake unit is abnormally increased.
Diagnosis delay timeWithin 1 second
 
 
POSSIBLE CAUSE
  • Electric driven intelligent brake unit
 
 
FAIL-SAFE
Stop the following operations.
  • Boosting operation by electric driven intelligent brake unit
  • Regenerative brake function
  • 4-wheel automatic pressure application function operated due to external brake request (FCM, ACC, innovative pedal operation mode, etc.)
 
 
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always electric motor switch OFF (Auto ACC function OFF) before conducting the next test.
:
 
2.CHECK DTC DETECTION
M.U.T.-III SE
  1. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  2. Repeat Step 1 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  3. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  4. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  5. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  6. Start the M.U.T.-III SE, then erase the DTC set in "EBA".
  7. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  8. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  9. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  10. Depress the brake pedal 100 mm (3.9in) or more, the keep that state for 5 seconds or more.
  11. Keep depressing the brake pedal.
  12. Start the M.U.T.-III SE, then perform the Diagnostic Trouble Code of "EBA".
Is DTC “C18F3-4B” detected?
Refer to Diagnosis Procedure.
INSPECTION END