Toyota Venza: SFR Solenoid Circuit (C0226/21,C0236/22,C0246/23,C0256/24,C1225/25-C1228/28)

Toyota Venza Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / SFR Solenoid Circuit (C0226/21,C0236/22,C0246/23,C0256/24,C1225/25-C1228/28)

DESCRIPTION

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

DTC Code	DTC Detection Condition	Trouble Area
C0226/21 C0236/22 C0246/23 C0256/24 C1225/25 C1226/26 C1227/27 C1228/28	Solenoid valve signal does not match the check result.	Solenoid circuit Brake actuator assembly (Solenoid)

DTC Code

DTC Detection Condition

Trouble Area

C0226/21

C0236/22

C0246/23

C0256/24

C1225/25

C1226/26

C1227/27

C1228/28

Solenoid valve signal does not match the check result.

Solenoid circuit
Brake actuator assembly (Solenoid)

WIRING DIAGRAM

PROCEDURE

1.	RECONFIRM DTC

HINT:

These codes are detected when a problem is determined in the brake actuator assembly.

The solenoid circuits are in the brake actuator assembly.

Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if any DTC is output before replacing the brake actuator assembly.

(a) Clear the DTCs (See page ).

(b) Start the engine.

(d) Check if the same DTC is recorded (See page ).

Result	Proceed to
DTCs (C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27 and C1228/28) are not output	A
DTCs (C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27 and/or C1228/28) are output	B

HINT:

If a speed signal of 15 km/h (9 mph) or more is input to the skid control ECU, with the ignition switch ON 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 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 assembly (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.

CHECK FOR INTERMITTENT PROBLEMS

REPLACE BRAKE ACTUATOR ASSEMBLY

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