2007 TOYOTA SIENNA Service Repair Manual

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Page 2481 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–119
BC
DESCRIPTION
The skid control ECU receives signals from the yaw rate sensor via CAN communication system.
Yaw rate sensor has the built-

Page 2482 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BC–120BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
INSPECTION PROCEDURE
HINT:
When U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 are output accompanied with C1210/36 or
C1336/39, in

Page 2483 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–121
BC
DESCRIPTION
This solenoid turns on when receiving signals the ECU and controls the pressure acting on the wheel
cylinders to control th

Page 2484 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BC–122BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
DESCRIPTION
The steering angle sensor signal is sent to the skid control ECU through the CAN communication system.
When there is a malf

Page 2485 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–123
BC
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
• When U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 are output accompanied with C1231/

Page 2486 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BC–124BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
• When the speed sensor or the yaw rate sensor has trouble. DTCs for the steering angle sensor may be
output even when the steering a

Page 2487 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–125
BC
DESCRIPTION
The yaw rate sensor and deceleration sensor signal is sent to the skid control ECU through the CAN
communication system. Wh

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–125
BC
DESCRIPTION
The yaw rate sensor and deceleration sensor signal is sent to the skid control ECU through the CAN
communication system. When there is a malfunction in the communication, it will be detected by the
diagnosis function.
DTC C1232/32 Stuck in Deceleration Sensor
DTC C1234/34 Yaw Rate Sensor Malfunction
DTC C1243/43 Acceleration Sensor Stuck Malfunction
DTC C1244/44 Open or Short in Deceleration Sensor Circuit
DTC C1245/45 Acceleration Sensor Output Malfunction
DTC C1381/97Yaw Rate and / or Acceleration Sensor Power
Supply Voltage Malfunction
DTC Code DTC Detection Condition Trouble Area
C1232/32At a vehicle speed of 10 km/h (6 mph) or more, either
GL1 or GL2 (input signal) does not change for 30 sec.
or more.Yaw rate and deceleration sensor
C1234/34 The yaw rate sensor malfunction signal is received Yaw rate and deceleration sensor
C1243/43While vehicle speed becomes 0 km/h (0 mph) from 30
km/h (18 mph) or more, the condition that both GL1 and
GL2 signals of ECU terminals do not change 2 LSB or
more continued in a sequence 16 times.• Yaw rate and deceleration sensor
• Yaw rate and deceleration sensor circuit
C1244/44When either of the following is detected:
1. With vehicle speed at 0 km/h, after the difference of
output absolute value of G conversion value
between deceleration sensor terminals GL1 and
GL2 becomes 0.6 G or more, and the condition that
does not become 0.4 G continues for 60 sec. or
more.
2. Deceleration sensor malfunction signal is received.• Yaw rate and deceleration sensor
• Yaw rate and deceleration sensor circuit
C1245/45At the vehicle speed of 30 km/h (18 mph) or more, the
acceleration and deceleration values calculated from
the deceleration sensor values and from vehicle speed
are different, and the condition that the difference
exceeds 0.35 G continues for 60 sec. or more.• Yaw rate and deceleration sensor
• Yaw rate and deceleration sensor circuit
C1381/97With vehicle speed at 3 km/h or more, malfunction
signal of deceleration sensor terminal IG1 is received
for 10 sec. or more.• Yaw rate and deceleration sensor
• Yaw rate and deceleration sensor power source
circuit

Page 2488 of 3000

TOYOTA SIENNA 2007 Service Repair Manual BC–126BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
When U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 are output accompanied with C1232/32,

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