SFL Solenoid Circuit - 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 - SM Solenoid Circuit

DESCRIPTION

These solenoids turn on when signals are received from the skid control ECU and control the pressure acting on the wheel cylinders to control the braking force.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTE: When replacing the ABS & TRACTION actuator assembly, perform zero point calibration Programming and Relearning.

PROCEDURE

1. RECONFIRM DTC

HINT:
This code is detected when a problem is determined in the ABS & TRACTION actuator assembly.
The solenoid circuit is in the ABS & TRACTION actuator assembly.
Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if the DTC code is output before replacing the ABS & TRACTION actuator assembly.

(a) Clear the DTC.
(b) Start the engine.
(c) Drive the vehicle at the speed of 4 mph (6 km/h) or more.
(d) Check that the same DTC is recorded.
Result:





HINT:
- If a speed signal of 4 mph (6 km/h) or more is input to the skid control ECU, with the ignition switch on (IG) and the stop light switch off, the ECU performs self diagnosis of the motor and solenoid circuits.
- If the normal system code is output (the trouble code is not output), slightly jiggle the connectors, wire harness, and fuses of the ABS & TRACTION actuator assembly. Make sure that no DTCs are output.
- If any DTCs are output while jigging a connector or wire harness of the ABS & TRACTION actuator (skid control ECU), inspect and repair the connector or wire harness.
- These DTCs may be stored due to a malfunction in the connector terminal connection, etc.

B -- REPLACE ABS & TRACTION ACTUATOR ASSEMBLY
A -- END