Mitsubishi Galant (2004+). Manual - part 780
MANUAL A/C DIAGNOSIS
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-259
CHECK AT A/C-ECU TERMINAL <MIDDLE TYPE>
M1552010300583
8
2
1
5
3 4
6 7
9 10
20
19
18
17
16
15
14
13
12
11
32
24
29
21
31
30
2223
27
35
33
25
34
26
36
28
AC210339
C-15
C-16
AB
TERMINAL
NO.
CHECK ITEM
CHECKING REQUIREMENTS NORMAL CONDITION
1
Air mixing damper control motor When the air mix damper is
moved to the MAX. COOL
position.
10 V
When the air mix damper is
moved to the MAX. HOT
position.
0.5 V
2
Air mixing damper control motor When the air mix damper is
moved to the MAX. COOL
position.
0.5 V
When the air mix damper is
moved to the MAX. HOT
position.
10 V
3
Back-up power supply
Always
Battery positive voltage
4
Mode selection damper control
motor (DEF)
When the damper is moved to
the FACE position.
0.5 V
When the damper is moved to
the DEF position.
10 V
5
Outside/inside air selection
damper control motor (outside)
When the damper flap is
moving to the air recirculation
position.
0.5 V
When the damper flap is
moving to the outside air
position.
0 V (when the motor is
stopped)
6
Outside/inside air selection
damper control motor (inside)
When the damper flap is
moving to the air recirculation
position.
0 V (when the motor is
stopped)
When the damper flap is
moving to the outside air
position.
0.5 V
7
−
−
−
8
Rear window defogger relay
Ignition switch: ON
Battery positive voltage
9
Blower relay
Ignition switch: ON
Battery positive voltage
10
A/C compressor relay
A/C compressor relay: ON
Battery positive voltage
11
Mode selection damper control
motor (FACE)
When the damper is moved to
the FACE position.
10 V
When the damper is moved to
the DEF position.
0.5 V