2007 TOYOTA SIENNA Service Repair Manual

Page 2393 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BC–32BRAKE CONTROL  –  ANTI-LOCK BRAKE SYSTEM
BC
(a) Clear the DTCs (See page BC-10).
(b) Start the engine.
(c) Drive the vehicle at the speed of 4 mph (6 km/h) or more.
(d) Check that the same DT

Page 2394 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BRAKE CONTROL  –  ANTI-LOCK BRAKE SYSTEMBC–33
BC
DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU turns 
the motor relay on and operates th

Page 2395 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BC–34BRAKE CONTROL  –  ANTI-LOCK BRAKE SYSTEM
BC
NG
OK
(a) Install the ABS 1 fuse.
(b) Disconnect the skid control ECU connector.
(c) Measure the voltage according to the value(s) in the 
table be

Page 2396 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BRAKE CONTROL  –  ANTI-LOCK BRAKE SYSTEMBC–35
BC
(f) Check operating sound of the ABS motor when 
operating it with the intelligent tester.
OK:
The operating sound of the ABS motor is heard.
NG
OK

Page 2397 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BC–36BRAKE CONTROL  –  ANTI-LOCK BRAKE SYSTEM
BC
DESCRIPTION
This relay supplies power to each ABS solenoid.
Immediately after the ignition switch is turned to the ON position, the relay turns on

Page 2398 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BRAKE CONTROL  –  ANTI-LOCK BRAKE SYSTEMBC–37
BC
(a) Install the ABS 2 fuse.
(b) Disconnect the skid control ECU connector.
(c) Measure the voltage according to the value(s) in the 
table below.
S

Page 2399 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BC–38BRAKE CONTROL  –  ANTI-LOCK BRAKE SYSTEM
BC
HINT:
• If any DTCs are output while jiggling a connector or 
wire harness of the brake actuator (skid control ECU), 
inspect and repair the conn

Page 2400 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BRAKE CONTROL  –  ANTI-LOCK BRAKE SYSTEMBC–39
BC
DESCRIPTION
If there is a problem with the brake actuator assembly (skid control ECU) power supply circuit, the skid 
control ECU outputs the DTC a