2007 TOYOTA SIENNA traction control

BC–162BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
(a) Disconnect the traction OFF switch connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
NG
OK
7INSPECT TRACTION OFF SWITCH
C156495E01
Tester Connection Switch Condition Specified Condition
3 (+) - 4 (E) Switch is pushed in Below 1
3 (+) - 4 (E) Switch is not pushed in 10 k or higher
REPLACE TRACTION OFF SWITCH

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–163
BC
(a) Measure the resistance according to the value(s) in the
table below.
Standard resistance
HINT:
If troubleshooting has been carried out according to the
Problem Symptoms Table, refer back to the table and
proceed to the next step (See page BC-79).
NG
OK
8CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - TRACTION OFF SWITCH)
C159743E01
Tester Connection Condition Specified Condition
S3-43 (CSW) - T5-3 (+) Always Below 1
S3-43 (CSW) - Body
groundAlways 10 k or higher
T5-4 (E) - Body ground Always Below 1
REPAIR OR REPLACE HARNESS OR
CONNECTOR
REPLACE BRAKE ACTUATOR ASSEMBLY

BC–164BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
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).
INSPECTION PROCEDURE
NOTICE:
When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).
(a) Check if the CAN communication system DTC is output
(See page CA-17).
Result
B
A
(a) Check if the multiplex communication system DTC is
output (See page MP-14).
Result
B
A
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine.
(c) Select the Active Test mode on the intelligent tester (See
page BC-85).
ABS / VSC:
TRAC OFF Indicator Light does not Come ON
1CHECK CAN COMMUNICATION SYSTEM
Result Proceed to
CAN communication system DTC is not output A
CAN communication system DTC is output B
INSPECT CAN COMMUNICATION SYSTEM
2CHECK MULTIPLEX COMMUNICATION SYSTEM
Result Proceed to
Multiplex communication system DTC is not output A
Multiplex communication system DTC is output B
INSPECT MULTIPLEX COMMUNICATION
SYSTEM
3CHECK TRAC OFF INDICATOR LIGHT
Tester Display Test Part Control Range Diagnostic Note
VSC / TRAC OFF IND TRAC OFF indicator light Indicator light ON / OFF Observe combination meter