Toyota CH-R Service Manual: SM Solenoid Circuit (C1225-C1228,C1468,C1469,C146A,C146B)
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.
Click here
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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.
Click here
(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.
Click here
|
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:
- The skid control ECU (brake actuator assembly) performs self diagnosis of the solenoid circuit after the ignition switch is turned to ON.
- If the normal system code is output (no DTCs are output), slightly jiggle the connectors, wire harness, and fuses of the skid control ECU (brake actuator assembly).
- If any DTCs are output while jiggling a connector or wire harness of the skid control ECU (brake actuator assembly), inspect and repair the connector or wire harness.
- If no DTCs were output when reconfirming DTCs, checking for intermittent problems is necessary because it is suspected that the original DTCs were stored due to the poor connection of a connector terminal.
| A | .gif) |
USE SIMULATION METHOD TO CHECK
|
| B | |
REPLACE BRAKE ACTUATOR ASSEMBLY |
Open in ABS Motor Relay Circuit (C146C)
DESCRIPTION
The ABS motor relay supplies power to the pump motor. While the ABS is activated,
the skid control ECU turns the ABS motor relay on to operate the pump motor.
If the voltage supplied t ...
Yaw Rate Sensor (C1234,C1472,C1474)
DESCRIPTION
The skid control ECU (brake actuator assembly) receives signals from the yaw
rate and acceleration sensor (airbag sensor assembly) via CAN communication.
HINT:
If there is a malfuncti ...
Other materials:
Toyota CH-R Service Manual > Audio And Visual System(for Radio Receiver Type): Radio Receiver Power Source Circuit
DESCRIPTION
This is the power source circuit to operate the radio receiver assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following
procedure.
PROCEDURE
1.
CHECK HARNESS AND CONNEC ...
Toyota CH-R Service Manual > Power Door Lock Control System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the power door lock control
system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
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Toyota CH-R Service Manual
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