DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen item(Trouble diagnosis content)	DTC detected condition
C1138-01	4WAS CIRCUIT(4WAS circuit)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	CAN communication signal
		Threshold	When a malfunction is detected in direct adaptive steering system.
		Diagnosis delay time	2 seconds or less
C1138-54	4WAS CIRCUIT(4WAS circuit)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	CAN communication signal
		Threshold	When a malfunction is detected in direct adaptive steering system.
		Diagnosis delay time	2 seconds or less
C1138-61	4WAS CIRCUIT(4WAS circuit)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	CAN communication signal
		Threshold	When a malfunction is detected in direct adaptive steering system.
		Diagnosis delay time	2 seconds or less
C1138-82	4WAS CIRCUIT(4WAS circuit)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	CAN communication signal
		Threshold	When a malfunction is detected in direct adaptive steering system.
		Diagnosis delay time	2 seconds or less
C1138-83	4WAS CIRCUIT(4WAS circuit)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	CAN communication signal
		Threshold	When a malfunction is detected in direct adaptive steering system.
		Diagnosis delay time	2 seconds or less

POSSIBLE CAUSE

NOTE:

Confirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear DTC. Do not replace the ABS actuator and electric unit (control unit) for a PAST DTC.

PAST DTC	CRNT DTC
Harness or connector CAN communication line ABS actuator and electric unit (control unit) power supply system Fuse Fusible link 12V battery	Harness or connector CAN communication line Direct adaptive steering system ABS actuator and electric unit (control unit)

FAIL-SAFE

The following functions are suspended:

VDC function
TCS function
Brake assist function
Brake force distribution function
Active trace control function (control of chassis control module)

DTC CONFIRMATION PROCEDURE

PRECONDITIONING
1. If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always place the ignition switch in the OFF position and wait at least 10 seconds before conducting the next test.
>>

GO TO 2.
CHECK DTC DETECTION
1. CONSULT
  1. Ignition switch OFF.
    NOTE: Wait at least 10 seconds after placing the ignition switch OFF.
  2. Set the vehicle to READY/Start the engine.
    NOTE: Wait at least 10 seconds after set the vehicle to READY/start the engine.
  3. Repeat step 1 to 2 two or more times.
  4. Select "Self Diagnostic Result" mode of "ABS".
Is DTC "C1138-01", "C1138-54" "C1138-61" "C1138-82" or "C1138-83" detected?

YES-1>>

"CRNT" is displayed: Proceed to Diagnosis Procedure .

YES-2>>

"PAST" is displayed: Inspection End (Erase "Self Diagnostic Result" mode of "ABS").

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident .

NO-2>>

Confirmation after repair: Inspection End.