2007 TOYOTA SIENNA Service Repair Manual

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Page 2401 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BC–40BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEM
BC
(a) Check the battery voltage.
Standard voltage:
11 to 14 V
NG
OK
(a) Remove the ECU-IG fuse from the driver side J/B.
(b) Measure the resistance a

Page 2402 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEMBC–41
BC
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to ON position.
(c) Measure the voltage according to the value(s) in th

Page 2403 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BC–42BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEM
BC
A
REPLACE BRAKE ACTUATOR ASSEMBLY

Page 2404 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEMBC–43
BC
DESCRIPTION
This skid control ECU inputs the stop light switch signal and detects the status of brake operation.
The skid control ECU has an open d

Page 2405 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BC–44BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEM
BC
INSPECTION PROCEDURE
(a) Check that the stop light comes on when the brake pedal
is depressed, and goes off when the brake pedal is
released.
OK:

Page 2406 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEMBC–45
BC
Result
B
A
(a) Disconnect the stop light switch connector.
(b) Measure the voltage according to the value(s) in the
table below.
Standard voltage

Page 2407 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BC–46BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEM
BC
(a) Disconnect the skid control ECU connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
HINT:

Page 2408 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEMBC–47
BC
DESCRIPTION
The motor relay (semiconductor relay) is housed in the brake actuator assembly and drives the pump
motor based on a signal from the sk

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