Toyota Sienna Service Manual: SFR Solenoid Circuit
DESCRIPTION
This solenoid goes on when signals are received from the ECU and controls the pressure acting on the wheel cylinders to control the braking force.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 RECONFIRM DTC
HINT: This code is detected when a problem is determined in the brake actuator assembly.
The solenoid circuit is in the brake actuator assembly.
Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if the DTC code is output before replacing the brake actuator assembly.
(a) Clear the DTCs (See page BC-82).
(b) Turn the ignition switch to the ON position.
(c) Are the same DTCs recorded?
Result 
NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).
REPLACE BRAKE ACTUATOR ASSEMBLY
Right Rear Wheel Speed Sensor Signal
DESCRIPTION
Refer to DTCs C0200/31, C0205/32, C1235/35 and C1236/36 (See page BC-92).
HINT:
DTC C0210/33 and C1238/38 are for the right rear speed sensor.
DTC C0215/34 and C1239/39 are ...
Open or Short Circuit in ABS Motor Relay Circuit
DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS &
TRAC & VSC are
activated, the ECU switches the ABS motor relay ON and operates the ABS pump
moto ...
Other materials:
Room temperature sensor
On-vehicle inspection
1. INSPECT A/C ROOM TEMPERATURE SENSOR
(a) Remove the A/C room temperature sensor.
(b) Measure the resistance according to the value(s) in
the table below.
Standard resistance
NOTICE:
Even slightly touching the sensor may
change the resistance value. Be sure ...
TRAC OFF Indicator Light does not Come ON
DESCRIPTION
The skid control ECU is connected to the combination meter via CAN and
multiplex communications.
When the traction OFF switch is turned on, the TRAC OFF indicator light will
come on (for 2WD model).
WIRING DIAGRAM
Refer to TRAC OFF Indicator Light Remains ON (See page BC-157).
...
Vehicle exterior
Items
Check points
Doors
Do the doors operate smoothly?
Engine hood
Does the engine hood lock system work
properly?
Fluid leaks
There should not be any signs of fluid
leakage after the vehicle ha ...
