Mitsubishi Galant (2004+). Manual - part 795

SENSORS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-25

SENSORS

REMOVAL AND INSTALLATION

M1554001900088

Required Special Tools:

•  MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface 

(V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

AC306634

3

1

2

AB

INTERIOR TEMPERATURE 
SENSOR REMOVAL STEPS

•

LOWER PANEL (REFER TO 
GROUP 52A, INSTRUMENT 
PANEL 

P.52A-3

).

1.

INTERIOR TEMPERATURE 
SENSOR

2.

ASPIRATOR HOSE

PHOTO SENSOR REMOVAL 
STEPS

3.

PHOTO SENSOR

SENSORS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-26

INSPECTION

M1554002000077

.

INTERIOR TEMPERATURE SENSOR CHECK
When the resistance between the sensor terminals is mea-
sured under two or more temperature conditions, the resis-
tance should approximately satisfy the illustrated values.
NOTE: 

The temperature conditions when checking should not 

exceed the range shown in the diagram.

.

PHOTO SENSOR CHECK

1. Connect scan tool MB991958, and check the data list of the 

photo sensor. (Refer to 

P.55B-4

)

2. Check that the displayed value changes when you cover 

the photo sensor with your hands.

AC305231CK

CONNECTOR: C-123

HARNESS SIDE

AC103488 AC

RESISTANCE
   (k

Ω)

TEMPERATURE ˚C (˚F)

20

15

10

5

0

0

20

40

60

80

-10

(32) (68) (104) (140) (176)

(14)

OTHER PARTS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-27

OTHER PARTS

OTHER PARTS MAINTENANCE SERVICE POINTS

M1554004000095

The following maintenance service points are the 
same as for the manual A/C. 

ITEM

REFERENCE 
PAGE

ON-VEHICLE 
SERVICE

REFRIGERANT 
LEVEL TEST

P.55A-263

AIR 
CONDITIONING 
COMPRESSOR 
CLUTCH TEST

P.55A-283

SIMPLE 
INSPECTION OF 
THE A/C 
PRESSURE 
SENSOR

P.55A-263

COMPRESSOR 
DRIVE BELT 
ADJUSTMENT

P.55A-264

CHARGING, 
DISCHARGING

P.55A-264

PERFORMANCE 
TEST

P.55A-265

REFRIGERANT 
LEAK REPAIR

P.55A-266

COMPRESSOR 
NOISE CHECK

P.55A-266

POWER RELAY 
CONTINUITY 
CHECK

P.55A-267

IDLE-UP 
OPERATION 
CHECK

P.55A-269

HEATER CONTROL (A/C-ECU)

P.55A-270

HEATER CASE, BLOWER CASE

P.55A-273

MOTORS AND TRANSISTOR

P.55A-277

AMBIENT AIR TEMPERATURE 
SENSOR

P.55A-280

COMPRESSOR AND TENSION 
PULLEY

P.55A-281

CONDENSER

P.55A-287

REFRIGERANT LINE

P.55A-289

DUCTS

P.55A-292

REAR VENTILATION DUCT

P.55A-292

ITEM

REFERENCE 
PAGE

NOTES