DTC Description

DTC DETECTION LOGIC

DTC Description		M.U.T.-III SE screen terms (Trouble diagnosis content)	DTC detection condition
C18EC	04	Position sensor plausibility	Diagnosis condition	Electric motor switch ON
			Signal (terminal)	–
			Threshold	A malfunction of the stroke sensor inside the electric driven intelligent brake unit occurs.
			Diagnosis delay time	Within 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

Connect the all connectors.
Use the M.U.T.-III SE, then erase the DTC set in the "EBA".
Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
Use the M.U.T.-III SE, then check whether the DTC set in the "EBA".

Is DTC “C18EC-04” detected?

Refer to Diagnosis Procedure

INSPECTION END