DTC Code | DTC Name |
---|---|
C0226/21 | SFR Solenoid Circuit |
C0236/22 | SFL Solenoid Circuit |
C0246/23 | SRR Solenoid Circuit |
C0256/24 | SRL Solenoid Circuit |
C1225/25 | SMC Solenoid Circuit |
C1226/26 | SMC Solenoid Circuit |
C1227/27 | SRC Solenoid Circuit |
C1228/28 | SRC Solenoid Circuit |
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. |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
When replacing the skid control ECU (brake actuator assembly), perform the engine variant learning Click here.
PROCEDURE
RECONFIRM DTC
Tech Tips
These codes are stored when a problem is detected 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.
Clear the DTCs Click here.
Start the engine.
Drive the vehicle at the speed of 20 km/h (12 mph) or more.
Check if the same DTC is output Click here.
Result | Proceed to |
---|---|
DTC C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27 and/or C1228/28 is not output. | A |
DTC C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27 and/or C1228/28 is output. | B |
Tech Tips
If a speed signal of 6 km/h (4 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 (a trouble code is not output), slightly jiggle the connector, wire harness, and fuses of the brake actuator assembly. Make sure that no DTCs are output.
If any DTCs are stored while jiggling a connector or wire harness of the brake actuator assembly (skid control ECU), inspect and repair the connector or wire harness.
The DTCs may be stored due to a bad connection at the connector terminal.
B |
REPLACE BRAKE ACTUATOR ASSEMBLY Click here |
A |
USE SIMULATION METHOD TO CHECK Click here