2007 TOYOTA SIENNA Service Repair Manual

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Page 2321 of 3000

TOYOTA SIENNA 2007 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–79
TW
A
REPLACE TIRE PRESSURE WARNING ECU (See page TW-87)

Page 2322 of 3000

TOYOTA SIENNA 2007 Service Repair Manual TW–80TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When replacing the tire

Page 2323 of 3000

TOYOTA SIENNA 2007 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–81
TW
OK
(a) Remove the IG1 relay from the instrument panel junction
block.
(b) Measure the resistance according to the value(s) in the
table be

Page 2324 of 3000

TOYOTA SIENNA 2007 Service Repair Manual TW–82TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
DESCRIPTION
DTC output mode is set by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are indicated
by blinks of the tire pre

Page 2325 of 3000

TOYOTA SIENNA 2007 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–83
TW
(a) Disconnect the T15 ECU connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
NG
OK
1C

Page 2326 of 3000

TOYOTA SIENNA 2007 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–21
TW
REGISTRATION
1. DESCRIPTION OF CODE REGISTRATION
It is necessary to register the transmitter ID in the tire
pressure warning ECU when repla

Page 2327 of 3000

TOYOTA SIENNA 2007 Service Repair Manual TW–22TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
NOTICE:
• The transmitter ID is written on the tire
pressure warning valve and
transmitter. It will be unable to be read
after installi

Page 2328 of 3000

TOYOTA SIENNA 2007 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–23
TW
3. CONFIRMATION OF TRANSMITTER ID
REGISTRATION
(a) Make sure that the ignition switch is off.
(b) Connect the intelligent tester to DLC3.
(

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