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 ignition 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 ignition switch OFF -> ON.

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


Diagnosis Procedure


1. CHECK CONNECTOR

1.Turn the ignition switch OFF.
2.Close all doors including the trunk lid, and wait for a minimum of 5 minutes.
3.Disconnect ABS actuator and electric unit (control unit) harness connector.
4.Disconnect electrically-driven intelligent brake unit harness.
5.Check 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. Precaution For Harness Repair VDC. GO TO 3.

3. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS (1)

With CONSULT
1.Turn the ignition switch OFF.
2.Connect ABS actuator and electric unit (control unit) harness connector.
3.Connect electrically-driven intelligent brake unit harness.
4.Close all doors including the trunk lid, and wait outside of vehicle for a minimum of 5 minutes.
5.Turn the ignition switch OFF -> ON.

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

4. PERFORM ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT SELF-DIAGNOSIS

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

5. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS (2)

With CONSULT
1.Turn the ignition switch OFF -> ON.

CAUTION:
- Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
- Set the vehicle to READY/Start the engine.
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). Removal and Installation.
NO- INSPECTION END