C0256

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: 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

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






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE:
When replacing the master cylinder solenoid, perform zero point calibration Calibration.

PROCEDURE

1. RECONFIRM DTC
HINT: These codes are stored when a problem is detected in the master cylinder solenoid.
The solenoid circuit is in the master cylinder solenoid.
Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if any DTC is output before replacing the master cylinder solenoid.
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Drive the vehicle at a speed of approximately 32 km/h (20 mph) or more for 60 seconds or more.
(c) Check if the same DTCs are output Reading and Clearing Diagnostic Trouble Codes.

Result





B -- USE SIMULATION METHOD TO CHECK
A -- REPLACE MASTER CYLINDER SOLENOID