2007 TOYOTA SIENNA Service Repair Manual

Page 2945 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  BLOWER UNIT (for Rear Air Conditioning System)AC–207
AC
(c) Remove the 3 screws and the heater water valve 
assembly.
(d) Remove the 2 O-rings from the heater water valve 
ass

Page 2946 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–33
AC
DESCRIPTION
The evaporator temperature sensor (A/C thermistor) is installed on the evaporator in the

Page 2947 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–34AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
OK:
The display is as specified in the normal condition 
column.
Result
B
C
A
(a) Disconnect the conn

Page 2948 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–35
AC
(a) Disconnect the evaporator temperature sensor 
connector.
(b) Disconnect the A/C amplifier connect

Page 2949 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–210AIR CONDITIONING  –  BLOWER MOTOR
AC
BLOWER MOTOR
ON-VEHICLE INSPECTION
1. INSPECT BLOWER WITH FAN MOTOR SUB-
ASSEMBLY
(a) Connect the positive (+) lead from the battery to 
terminal 2 and n

Page 2950 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–36AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
DESCRIPTION
The rear evaporator temperature sensor is installed on the rear evaporator. It detects th

Page 2951 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–37
AC
(c) Select the item below in the DATA LIST, and read the 
display on the intelligent tester.
DATA LIS

Page 2952 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–38AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
Standard resistance
NOTICE:
• Even slightly touching the sensor may change the 
resistance value. B