Mitsubishi Galant. Manual — part 718

SPECIAL TOOLS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-267

SPECIA L TO O LS

M1549000300065

TOOL

TOOL NUMBER
AND NAME

REPLACED BY
MILLER TOOL
NUMBER

APPLICATION

MB991502
Scan tool (MUT-II)

DRB-III scan tool

Checking the diagnostic trouble
code and input signal

MB991529
Diagnostic trouble
code check harness

MB991529

Checking input signal when using
a voltmeter

MB991223
A:MB991219
B:MB991220
C:MB991221
D:MB991222
Harness set
A:Test harness
B:LED harness
C:LED harness
adaptor
D:Probe

MB991223

Making voltage and resistance
measurement during trouble-
shooting
A:Connector pin contact pressure
inspection
B:Power circuit inspection
C:Power circuit inspection
D:Commercial tester connection

B991502

MB991529

MB991223

A

D

C

B

AD

SPECIAL TOOLS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-268

NOTES

55-1

GROUP 55

HEATING AND AIR

CONDITIONING

CONTENTS

GENERAL INFORMATION . . . . . . . .

55-3

MANUAL A/C DIAGNOSIS . . . . . . . .

55-4

INTRODUCTION TO HEATER, AIR CONDITIONING
AND VENTILATION DIAGNOSIS . . . . . . . .

55-4

HEATER, AIR CONDITIONING AND VENTILATION
DIAGNOSTIC TROUBLESHOOTING STRATEGY

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55-5

SYMPTOM CHART. . . . . . . . . . . . . . . . . . .

55-5

SYMPTOM PROCEDURES . . . . . . . . . . . .

55-5

CHECK AT ECU TERMINAL . . . . . . . . . . .

55-17

TROUBLESHOOTING HINT. . . . . . . . . . . .

55-19

SPECIAL TOOLS. . . . . . . . . . . . . . . .

55-19

ON-VEHICLE SERVICE. . . . . . . . . . .

55-20

SIGHT GLASS REFRIGERANT LEVEL TEST

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55-20

MAGNETIC CLUTCH TEST . . . . . . . . . . . .

55-20

RECEIVER DRIER TEST . . . . . . . . . . . . . .

55-20

PRESSURE SWITCH CHECK . . . . . . . . . .

55-21

COMPRESSOR DRIVE BELT ADJUSTMENT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55-21

CHARGING . . . . . . . . . . . . . . . . . . . . . . . .

55-21

PERFORMANCE TEST . . . . . . . . . . . . . . .

55-22

REFRIGERANT LEAK REPAIR PROCEDURE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55-23

COMPRESSOR NOISE CHECK . . . . . . . .

55-24

POWER RELAY CHECK . . . . . . . . . . . . . .

55-24

IDLE-UP OPERATION CHECK . . . . . . . . .

55-25

HEATER CONTROL ASSEMBLY AND A/C
SWITCH . . . . . . . . . . . . . . . . . . . . . . .

55-26

HEATER CONTROL ASSEMBLY AND A/C SWITCH

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55-26

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

55-29

HEATER UNIT,HEATER CORE,BLOWER
ASSEMBLY, EVAPORATOR UNIT . .

55-30

HEATER/COOLER UNIT, HEATER CORE AND
EVAPORATOR UNIT . . . . . . . . . . . . . . . . .

55-30

BLOWER ASSEMBLY AND RESISTOR

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55-32

BLOWER ASSEMBLY AND RESISTOR. . .

55-32

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

55-33

COMPRESSOR ASSEMBLY AND TENSION
PULLEY . . . . . . . . . . . . . . . . . . . . . . .

55-33

COMPRESSOR ASSEMBLY AND TENSION PULLEY

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55-33

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

55-36

COMPRESSOR MAGNETIC CLUTCH OPERATION
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

55-36

REVOLUTION PICK-UP SENSOR CHECK

55-37

MAGNETIC CLUTCH . . . . . . . . . . . . . . . . .

55-37

CONDENSER AND CONDENSER FAN
MOTOR . . . . . . . . . . . . . . . . . . . . . . . .

55-40

CONDENSER AND CONDENSER FAN MOTOR

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55-40

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

55-41

REFRIGERANT LINE . . . . . . . . . . . . .

55-41

REFRIGERANT LINE . . . . . . . . . . . . . . . . .

55-41

VENTILATORS . . . . . . . . . . . . . . . . . .

55-43

VENTILATORS . . . . . . . . . . . . . . . . . . . . . .

55-43