Vehicle Stability Control System

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C0226/21: SFR Solenoid Circuit

DTC C0226/21 - SFR Solenoid Circuit

DTC C0236/22 - SFL Solenoid Circuit

DTC C0246/23 - SRR Solenoid Circuit

DTC C0256/24 - SRL Solenoid Circuit

DTC C1225/25 - SMC Solenoid Circuit

DTC C1226/26 - SPC Solenoid Circuit

DTC C1227/27 - SRC Solenoid Circuit

DTC C1228/28 - STR 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





INSPECTION 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)