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DTC C103F:54 [ELECTRONICALLY CONTROLLED BRAKE UNIT]

id0402c6020600

Outline

System malfunction location

Electronically controlled brake unit system (unperformed initialization procedure)

Detection condition

•  The electronically controlled brake unit detects that the linear actuator position sensor initialization was not performed.

Fail-safe

Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”. (See DTC TABLE [ELECTRONICALLY CONTROLLED BRAKE UNIT].)

Possible cause

•  The initialization procedure for the linear actuator position sensor has not been performed.

•  Electronically controlled brake unit malfunction

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Electronically controlled brake unit system (unperformed initialization procedure)
Detection condition	• The electronically controlled brake unit detects that the linear actuator position sensor initialization was not performed.
Fail-safe	Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”. (See DTC TABLE [ELECTRONICALLY CONTROLLED BRAKE UNIT].)
Possible cause	• The initialization procedure for the linear actuator position sensor has not been performed. • Electronically controlled brake unit malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY IF INITIALIZATION FOR ELECTRONICALLY CONTROLLED BRAKE SYSTEM RELATED PARTS (LINEAR ACTUATOR POSITION SENSOR) WAS PERFORMED

•  Was the initialization for the electronically controlled brake system related parts (linear actuator position sensor) performed?

Yes

Go to the next step.

No

Perform the initialization for the electronically controlled brake system related parts (linear actuator position sensor), and perform the repair completion verification.

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the electronically controlled brake unit.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the electronically controlled brake unit, then go to the next step.
(See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [L.H.D.].)

(See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [R.H.D.].)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTCs DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	VERIFY IF INITIALIZATION FOR ELECTRONICALLY CONTROLLED BRAKE SYSTEM RELATED PARTS (LINEAR ACTUATOR POSITION SENSOR) WAS PERFORMED • Was the initialization for the electronically controlled brake system related parts (linear actuator position sensor) performed?	Yes	Go to the next step.
1		No	Perform the initialization for the electronically controlled brake system related parts (linear actuator position sensor), and perform the repair completion verification.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the electronically controlled brake unit. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the electronically controlled brake unit, then go to the next step. (See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [L.H.D.].) (See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [R.H.D.].)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.