2007 TOYOTA SIENNA wiring

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Page 2901 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–12AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
A9-21 (SG-1) - A9-1 
(GND)GR-L - W-B Signal ground Always Below 1 V
A9-22 (SG-4) - A9-1 
(GND)Y - W-B

Page 2902 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–13
AC
(a) Waveform 1:
A10-2 (FACE) - A9-1 
(GND)LG-B - W-BRear air outlet control 
servo motor signalIG SW:

Page 2905 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–164AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Manual Air Conditioning System)
AC
TERMINALS OF ECU
1. A/C AMPLIFIER
HINT:
Check from the rear of the connector while it is 
connected to th

Page 2906 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Manual Air Conditioning System)AC–165
AC
A9-12 (SOL+) - A9-6 
(GND)W-L - W-BA/C compressor operation 
signalEngine is runningA/C 
switch: ON
Front

Page 2907 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–166AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Manual Air Conditioning System)
AC
A9-27 (SG-1) - Body 
groundGR-L - Body groundGround for air outlet 
control damper position 
sensorAlways

Page 2908 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Manual Air Conditioning System)AC–167
AC
(a) Waveform 1:
A10-10 (PRE) - A9-30 
(SG-6)V - W-GA/C pressure sensor 
signalStart engine
Operate A/C sy

Page 2918 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–18AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the intelligent tester to read the Data List allows

Page 2919 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–19
AC
HINT:
*1: It differs depending on the user setting.
2. ACTIVE TEST
HINT:
Using the intelligent tester