Air Conditioning System: Automatic Type 7B-62
DTC B1513 (No.13): Temperature Control Actuator and/or its Circuit malfunction
S3RH0A7224018
Wiring Diagram
3
1) Check resistance between “RED/WHT” wire terminal
and body ground.
Is resistance more than 1 M
Ω
?
Poor connection of
“RED/WHT” wire
terminal at HVAC
control module
connector, and/or HVAC
control module faulty.
“RED/WHT” wire
shorted to ground.
4
1) With ignition switch ON position, check voltage between
“RED/WHT” wire terminal and “BLK/RED” wire terminal
at air flow control actuator connector.
Is voltage about 5 V?
Go to Step 5.
“BLK/RED” wire open,
poor connection of
“BLK/RED” wire
terminal at HVAC
control module
connector, and/or HVAC
control module faulty.
5
1) With ignition switch ON position, check voltage between
“WHT/BLU” wire terminal and “BLK/RED” wire terminal
at air flow control actuator connector.
Is voltage about 5 V?
Go to Step 8.
Go to Step 6.
6
1) Turn ignition switch OFF, disconnect HVAC control
module connector referring to “HVAC Control Module
Removal and Installation in Section 7A”.
2) Check resistance between “WHT/BLU” wire terminal at
air flow control actuator connector and “WHT/BLU” wire
terminal at HVAC control module connector.
Is resistance less than 1 M
Ω
?
Go to Step 7.
“WHT” wire open or
high resistance.
7
1) Check resistance between “WHT/BLU” wire terminal and
body ground.
Is resistance more than 1 M
Ω
?
Poor connection of
“WHT” wire terminal at
HVAC control module
connector, and/or HVAC
control module faulty.
“WHT/BLU” wire
shorted to ground.
8
1) Check air flow control actuator referring to “Air Flow
Control Actuator Inspection in Section 7A”.
Is air flow control actuator normal?
HVAC control module
faulty.
Air flow control actuator
faulty.
Step
Action
Yes
No
M
12V
5V
5V
RED/WHT
WHT
BLK/RED
GRY/BLU
GRY
G77-9
G77-28
G77-26
G77-20
G77-19
2
1
3
9
26
20 19
28
I3RH0A722015-01
1. HVAC control module
2. Temperature control actuator
3. HVAC control module connector “G77” (viewed from harness side)
Содержание Liana RH413
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