Type 1

C1120, C1122, C1124, C1126 IN ABS SOL

Description

The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper 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, Type 1.

1. CONNECTOR INSPECTION

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

2. CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR 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 E125 terminal 32 and ground.





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

3. CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY GROUND CIRCUIT






Check continuity between ABS actuator and electric unit (control unit) connector E125 terminals 16, 47 and ground.





Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit).
Type 1.
NO- Repair or replace malfunctioning components.


Component Inspection


1. CHECK ACTIVE TEST

1.Select each test menu item on "ACTIVE TEST".
2.On the display, touch "Up", "Keep", and "Down", and check that the system operates as shown in the 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 neutral position adjustment for the steering angle sensor when replacing the ABS actuator and electric unit (control unit). Type 1.
- GO TO 2

2. CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Type 1.
- END