2007 TOYOTA SIENNA wiring

AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–53
AC
WIRING DIAGRAM
E116878E10

AC–66AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
• If DTC B1244 is output at the same time, troubleshoot DTC B1244 first (See page LI-16).
• If the check is performed in a dark place, DTC B1421/21 or B1424/24 (solar sensor circuit abnormal)
may be output even though the system is normal.
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Expose the sensing portion of the solar sensor to light.
HINT:
Use an incandescent light for inspection.
(d) Select the item below in the DATA LIST, and read the
display on the intelligent tester.
DATA LIST / AIR CONDITIONER:
OK:
The display is as specified in the normal condition
column.
Result
1READ VALUE OF INTELLIGENT TESTER
E109253E30
Tester Display Measurement Item/Range Normal Condition Diagnostic Note
SOLAR SENS-D
(Solar sensor (D side))Driver side solar sensor / min.: 0,
max.: 255Driver side solar sensor value
increases as brightness
increases-
Result Proceed to
NGA
OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B
OK (When troubleshooting according to the DTC) C

AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–71
AC
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Select the items below in the DATA LIST, and read the
display on the intelligent tester.
DATA LIST / AIR CONDITIONER
OK:
The display is as specified in the normal condition
column.
Result
B
1READ VALUE OF INTELLIGENT TESTER
I036321E21
Tester Display Measurement Item/Range Normal Condition Diagnostic Note
A/M DAMP POS-PAir mix damper position
(Passenger side) / min.: -14%,
max.: 113.5%
Damper is at "MAX. COOL": -5%
Damper is at "MAX. HOT": 105%-
A/M DAMP TARG-PAir mix damper target position
(Passenger side) / min.: -14%,
max.: 113.5%
Result Proceed to
NGA
OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B
OK (When troubleshooting according to the DTC) C
PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE

AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–75
AC
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Select the items below in the DATA LIST, and read the
display on the intelligent tester.
DATA LIST / AIR CONDITIONER
OK:
The display is as specified in the normal condition
column.
Result
B
C
1READ VALUE OF INTELLIGENT TESTER
I036321E22
Tester Display Measurement Item/Range Normal Condition Diagnostic Note
A/I DAMP POSAir inlet damper position / min.: -
14%, max.: 113.5%Damper is at
"RECIRCULATION": -10%
Damper is at "FRESH": 110%
Damper is at "HALF-
RECIRCULATION": 35 to 75%Open in the circuit: 50.0%
A/I DAMP TARGAir inlet damper target position /
min.: -14%, max.: 113.5%
Result Proceed to
NGA
OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B
OK (When troubleshooting according to the DTC) C
PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE
REPLACE A/C AMPLIFIER

AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–79
AC
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Select the items below in the DATA LIST, and read the
displays on the intelligent tester.
DATA LIST / AIR CONDITIONER
OK:
The display is as specified in the normal condition
column.
Result
B
1READ VALUE OF INTELLIGENT TESTER
I036321E27
Tester Display Measurement Item/Range Normal Condition Diagnostic Note
A/O DAMP POSAir outlet damper position / min.: -
14%, max.: 113.5%Damper is at "FACE": 0%
Damper is at "FACE/FOOT":
33.5%
Damper is at "FOOT": 53.5%
Damper is at "FACE/DEF": 73.5%
Damper is at "DEF": 100%Open in the circuit: 50.0%
A/O DAMP TARGAir outlet damper target position /
min.: -14%, max.: 113.5%
Result Proceed to
NGA
OK (When troubleshooting according to the PROBLEM SYMPTOM TABLE)B
OK (When troubleshooting according to the DTC) C
PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE

AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–83
AC
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Select the items below in the DATA LIST, and read the
display on the intelligent tester.
DATA LIST / AIR CONDITIONER
OK:
The display is as specified in the normal condition
column.
Result
B
1READ VALUE OF INTELLIGENT TESTER
I036321E24
Tester Display Measurement Item/Range Normal Condition Diagnostic Note
A/M DAMP POS-DAir mix damper position (Driver
side) / min.: -14%, max.: 113.5%
Damper is at "MAX. COOL": -5%
Damper is at "MAX. HOT": 105%-
A/M DAMP TARG-DAir mix damper target position
(Driver side) / min.: -14%, max.:
11 3 . 5 %
Result Proceed to
NGA
OK (When troubleshooting according to the PROBLEM SYMPTOM TABLE)B
OK (When troubleshooting according to the DTC) C
PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE

AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–87
AC
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Select the items below in the DATA LIST, and read the
display on the intelligent tester.
DATA LIST / AIR CONDITIONER
OK:
The display is as specified in the normal condition
column.
Result
B
C
1READ VALUE OF INTELLIGENT TESTER
I036321E25
Tester Display Measurement Item/Range Normal Condition Diagnostic Note
A/M DAMP POS-RAir mix damper position (Rear) /
min.: -14%, max.: 113.5%
Damper is at "MAX. COOL": 0%
Damper is at "MAX. HOT": 86.5%-
A/M DAMP TARG-RAir mix damper target position
(Rear) / min.: -14%, max.: 113.5%
Result Proceed to
NGA
OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B
OK (When troubleshooting according to the DTC) C
PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE
REPLACE A/C AMPLIFIER

AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–91
AC
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Select the items below in the DATA LIST, and read the
display on the intelligent tester.
DATA LIST / AIR CONDITIONER
OK:
The display is as specified in the normal condition
column.
Result
B
C
1READ VALUE OF INTELLIGENT TESTER
I036321E26
Tester Display Measurement Item/Range Normal Condition Diagnostic Note
A/O DAMP POS-RAir outlet mode damper position
(Rear) / min.: -14%, max.: 113.5%Damper is at "FACE1": 0%
Damper is at "FACE2": 16.5%
Damper is at "FACE/FOOT": 44%
Damper is at "FOOT": 100%Open in the circuit: 50.0%
A/O DAMP TARG-RAir outlet damper target position
(Rear) / min.: -14%, max.: 113.5%
Result Proceed to
NGA
OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B
OK (When troubleshooting according to the DTC) C
PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE
REPLACE A/C AMPLIFIER