U110D

U110D ELECTRICALLY-DRIVEN INTELLIGENT BRAKE COMMUNICATION

Description

ABS actuator and electric unit (control unit) and electrically-driven intelligent brake unit transmit/receive information to/from each other for optimum control of the ABS actuator and electric unit (control unit) with the specified brake communication line.


DTC Logic


DTC DETECTION LOGIC






*:Brake communication line between ABS actuator and electric unit (control unit) and electrically-driven intelligent brake unit.

DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn power switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. CHECK DTC DETECTION

With CONSULT
1.Turn the power switch OFF ON.

CAUTION:
- Be sure to wait of 10 seconds after turning power switch OFF or ON.
- Set the vehicle to READY.
2.Repeat step 1 two or more times.
3.Perform self-diagnosis for "ABS".
Is DTC "U110D" detected?
YES- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK CONNECTOR

1.Turn the power switch OFF.
2.Get out of the vehicle and close all doors (including back door).
3.Disconnect 12V battery cable from negative terminal. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery
4.Disconnect ABS actuator and electric unit (control unit) harness connector.
5.Disconnect electrically-driven intelligent brake unit harness.
6.Check the connector for disconnection or looseness.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace error-detected parts, securely lock the connector, and GO TO 2.

2. CHECK BRAKE COMMUNICATION LINE

1.Check the continuity between ABS actuator and electric unit (control unit) harness connector and electrically-driven intelligent brake unit harness connector.





2.Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace the harnesses and connectors. Refer to "Precaution for Harness Repair" Precaution For Harness Repair VDC. GO TO 3.

3. PERFORM SELF-DIAGNOSIS (1)

With CONSULT
1.Turn the power switch OFF.
2.Connect ABS actuator and electric unit (control unit) harness connector.
3.Connect electrically-driven intelligent brake unit harness.
4.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
5.Turn the power switch OFF ON.

CAUTION:
- Be sure to wait of 10 seconds after turning power switch OFF or ON.
- Set the vehicle to READY.
6.Repeat step 5 two or more times.
7.Perform self-diagnosis for "ABS".
Is DTC "C118A", "U1000" or "U110D" detected?
YES ("C118A")-Refer to "Diagnosis Procedure" C118A.
YES ("U1000")-Refer to "Diagnosis Procedure" Brake Control System.
YES ("U110D")-GO TO 4.
NO- INSPECTION END

4. CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE SYSTEM

With CONSULT
Perform self-diagnosis for "BRAKE".
Is any DTC detected?
YES- Check the DTC.
NO- GO TO 5.

5. PERFORM SELF-DIAGNOSIS (2)

With CONSULT
1.Turn the power switch OFF ON.

CAUTION:
- Be sure to wait of 10 seconds after turning power switch OFF or ON.
- Set the vehicle to READY.
2.Repeat step 1 two or more times.
3.Perform self-diagnosis for "ABS".
Is DTC "U110D" detected?
YES- Replace ABS actuator and electric unit (control unit). Refer to "Removal and Installation" Removal And Installation.
NO- INSPECTION END