C1111

C1111 PUMP MOTOR

Description


PUMP

The pump returns the brake fluid stored in the reservoir to the master cylinder by reducing the pressure.

MOTOR

The motor drives the pump according to the signals transmitted by the ABS actuator and electric unit (control unit).


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. CHECK SELF-DIAGNOSIS RESULTS

Check the self-diagnosis results.





Is above displayed on the self-diagnosis display?
YES- Proceed to diagnosis procedure. .
NO- Inspection End.


Diagnosis Procedure

Regarding Wiring Diagram information, Electrical Diagrams.

1. CONNECTOR INSPECTION

1.Turn ignition switch OFF.
2.Disconnect ABS actuator and electric unit (control unit) connector.
3.Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals.
4.Reconnect connector and perform self-diagnosis. Scan Tool Testing and Procedures.
Is any item indicated on the self-diagnosis display?
YES- GO TO 2
NO- Poor connection of connector terminals. Repair or replace connector.

2. CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect ABS actuator and electric unit (control unit) connector.
3.Check voltage between ABS actuator and electric unit (control unit) connector E26 terminal 2 and ground.





Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace malfunctioning components.

3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT






Check continuity between ABS actuator and electric unit (control unit) connector E26 terminals 1, 4 and ground.





Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit).
Removal And Installation.
NO- Repair or replace malfunctioning components.


Component Inspection


1. CHECK ACTIVE TEST

1.On "ACTIVE TEST", select "ABS MOTOR".
2.Touch "On" and "Off" on screen. Make sure motor relay, actuator relay, V/R output and M/R output operate as shown in table below.





Is the inspection result normal?
YES- Inspection End.
NO- Go to diagnosis procedure. .


Special Repair Requirement


1. ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit). Special Repair Requirement.
- END