SRR Solenoid Circuit - ABS (Antilock Brake System)

BRAKE CONTROL: ANTI-LOCK BRAKE SYSTEM: C0226/21,C0236/22,C0246/23,C0256/24: 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 signals are received from the ECU and they control the pressure acting on the wheel cylinders thus controlling 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 ABS (Antilock Brake System).
(b) Start the engine.
(c) Drive the vehicle at a speed of 12 mph (20 km/h) or more for 30 seconds or more.
(d) Check if the same DTC is recorded ABS (Antilock Brake System).
Result:





HINT:
- If the normal system code is output (the trouble code is not output), slightly jiggle the connectors, wire harness, 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.
- It is suspected that the DTCs were output due to a bad connection of the connector terminal.

B -- REPAIR BRAKE ACTUATOR ASSEMBLY
A -- END