2007 TOYOTA SIENNA Service Repair Manual

Page 2889 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–146AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
OK:
The display is as specified in the normal condition.
NG
OK
(a) Remove the rear blower motor with

Page 2890 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–147
AC
(a) Disconnect the connector from the rear blower motor 
controller.
(b) Measure the resistance acco

Page 2891 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–148AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
OK
(a) Disconnect the connector from the A/C amplifier.
(b) Measure the resistance according to the

Page 2892 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–149
AC
(c) Connect the positive (+) lead to terminal 3 through a 12 
V 3.4 W test bulb, and the negative (-

Page 2893 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–150AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
DESCRIPTION
The main power source is supplied to the A/C amplifier when the ignition switch is turne

Page 2894 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–151
AC
OK
(a) Remove the A/C amplifier with its connectors still 
connected.
(b) Turn the ignition switch t

Page 2895 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AC–152AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
(a) Measure the resistance according to the value(s) in the 
table below.
Standard resistance
NG
OK

Page 2896 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AIR CONDITIONING  –  AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–153
AC
DESCRIPTION
This circuit supplies power to the A/C amplifier and the illumination for the clock.
WIR