DTC 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

1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E26, check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
2. Reconnect connector and perform self-diagnosis. Is the Inspection result normal?

YES >> Inspection end.
NO >> GO TO 2

2. CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E26.

2. Check voltage between the ABS actuator and electric unit (control unit) harness connector E26 terminal 2 and ground.

• Repair or replace malfunctioning components.
• Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED".

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

• Replace ABS actuator and electric unit (control unit). Refer to See: Brakes and Traction Control\Antilock Brakes / Traction Control Systems\Hydraulic Control Assembly - Antilock Brakes\Service and Repair\TCS/ABS\Removal And Installation.
• Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED". NO >>
• Repair or replace malfunctioning components.
• Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED".

Component Inspection
1.CHECK ACTIVE TEST

1. On "ACTIVE TEST", select "ABS MOTOR".
2. Touch ON and OFF on screen. Make sure motor relay and actuator relay operates as shown in table below.