C1228

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C0226/21,C0236/22,C0246/23,C0256/24,C1225/25-C1228/28: SFR Solenoid Circuit


DESCRIPTION

This solenoid turns on when signals are received from the ECU and controls the pressure acting on the wheel cylinders, thus controlling the braking force.





WIRING DIAGRAM





INSEPCTION PROCEDURE

PROCEDURE

1. INSPECT BRAKE ACTUATOR





(a) Disconnect the B1 and B3 actuator connectors.

(b) Measure the resistance of the actuator.

HINT
Resistance of each solenoid at 20°C (68°F).

Standard resistance:





NG -- REPLACE BRAKE ACTUATOR
OK -- Continue to next step.

2. CHECK WIRE HARNESS (SKID CONTROL ECU - BRAKE ACTUATOR)





(a) Disconnect the S5 and S8 ECU connectors.

(b) Disconnect the B3 actuator connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

OK -- CHECK EACH CONNECTION IF SAME CODE IS STILL OUTPUT AFTER DTC DELETION (IF CONNECTION IS NORMAL, SKID CONTROL ECU MAY BE DEFECTIVE)