DESCRIPTION
These solenoids turn on when signals are received from the skid control ECU (brake actuator assembly) and they control the pressure acting on the wheel cylinders to control the braking force.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1225 |
SM Solenoid Circuit |
Solenoid valve signal does not match the check result. |
|
C1226 |
SA2 Solenoid Circuit |
Solenoid valve signal does not match the check result. |
|
C1227 |
SA3 Solenoid Circuit |
Solenoid valve signal does not match the check result. |
|
C1228 |
STR Solenoid Circuit |
Solenoid valve signal does not match the check result. |
|
C1468 |
SFR Solenoid Circuit |
Solenoid valve signal does not match the check result. |
|
C1469 |
SFL Solenoid Circuit |
Solenoid valve signal does not match the check result. |
|
C146A |
SRR Solenoid Circuit |
Solenoid valve signal does not match the check result. |
|
C146B |
SRL Solenoid Circuit |
Solenoid valve signal does not match the check result. |
|
WIRING DIAGRAM
Refer to DTC C146E.
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PROCEDURE
1. |
RECONFIRM DTC |
HINT:
These codes are detected when a problem is determined in the skid control ECU (brake actuator assembly).
The solenoid circuits are in the skid control ECU (brake actuator assembly).
Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if any DTCs are output before replacing the skid control ECU (brake actuator assembly).
(a) Clear the DTCs.
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Chassis > ABS/VSC/TRAC/EPB > Clear DTCs(b) Turn the ignition switch off.
(c) Start the engine.
(d) Drive the vehicle at a speed of 20 km/h (12 mph) or more.
(e) Check if the same DTC is output.
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Chassis > ABS/VSC/TRAC/EPB > Trouble Codes
Result |
Proceed to |
---|---|
DTCs C1225, C1226, C1227, C1228, C1468, C1469, C146A and C146B are not output. |
A |
DTCs C1225, C1226, C1227, C1228, C1468, C1469, C146A and/or C146B are output. |
B |
HINT:
A |
USE SIMULATION METHOD TO CHECK |
B |
REPLACE BRAKE ACTUATOR ASSEMBLY |
Toyota CH-R Service Manual > Air Conditioning Amplifier: Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration)
that must be performed after parts are removed and installed, or replaced during
the air conditioning amplifier assembly removal/installation are shown below.
Necessary Procedure ...
Toyota CH-R Service Manual > Electric Parking Brake System: EPB Switch Malfunction (C13B4)
DESCRIPTION
When the electric parking brake switch is pulled, a lock request signal is sent
from the skid control ECU (brake actuator assembly) to the parking brake actuator
assembly. When the electric parking brake switch is pushed, a release request signal
is sent from the skid control ECU ...