ABS (Antilock Brake System)

BRAKE CONTROL: ANTI-LOCK BRAKE 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

DESCRIPTION

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






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. RECONFIRM DTC
HINT: These codes are detected when a problem is identified in the brake actuator assembly.
The solenoid circuit is in the brake actuator assembly.
Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if the DTC is output before replacing the brake actuator assembly.
(a) Clear the DTC.
(b) Start the engine.
(c) Drive the vehicle at the speed of 12 mph (20km/h) or more for 30 seconds or more.
(d) Check that the same DTC is recorded.
Result:





HINT:
- If the normal system code is output (the malfunction code is not output), slightly jiggle the connectors, wire harnesses, and fuses of the brake actuator assembly. Make sure that no DTCs are output.
- If any DTCs are output while jiggling a connector or wire harness of the brake 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 BRAKE ACTUATOR ASSEMBLY
A -- END