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DTC Description
 
 
DTC DETECTION LOGIC
DTC Description
M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
C18E71CBattery Voltage
(Battery voltage)
Diagnosis conditionElectric motor switch ON
Signal (terminal)–
ThresholdThe abnormality of the voltage supplied to the electric driven intelligent brake unit is detected.
Diagnosis delay timeWithin 1 second
 
 
POSSIBLE CAUSE
  • Electric driven intelligent brake unit
  • The wiring harness between the EBA-ECU and the 12V battery
  • The wiring harness between the EBA-ECU and the brake power backup unit
 
 
FAIL-SAFE
Normal condition
 
 
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. Start the M.U.T.-III SE, then perform the Diagnostic Trouble Code of "EBA".
Is DTC “C18E7-1C” detected?
Refer to Diagnosis Procedure.
INSPECTION END