ABS

C1121, C1123, C1125, C1127 OUT 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 DIAGNOSTIC RESULT
With CONSULT-III.
1. Turn the ignition switch OFF to ON.
2. Perform self diagnostic result.
Is DTC C1121, C1123, C1125 or C1127 detected?
YES - Proceed to diagnosis procedure. C1121.
NO - Inspection End.

Diagnosis Procedure
Regarding Wiring Diagram information, ABS.
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 diagnostic result. ABS.
Is the inspection result normal?
YES - GO TO 2
NO - Poor connection of connector terminals. Repair or replace connector.
2.CHECK SOLENOID 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 E26 terminal 3 and ground.

Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace malfunctioning components.
3. CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control unit) connector E26 terminal 1, 4 and ground.

Is the inspection result normal?
YES - Replace ABS actuator and electric unit (control unit). Removal And Installation ABS.
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. ABS.