Mitsubishi Montero (2002-2004). Manual — part 70
REAR HEATER UNIT
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-143
INSPECTION
M1554010400025
.
AIR MIX DAMPER MOTOR CHECK <VEHICLES WITH REAR
HEATER OR REAR A/C>
CAUTION
Do not apply battery voltage when the damper is in the
MAX HOT/MAX COOL position.
Check the air mix damper motor by the following procedures.
.
AIR MIX DAMPER POTENTIOMETER CHECK <VEHICLES
WITH REAR HEATER OR REAR A/C>
When checking the air mix damper motor, measure the resis-
tance value between the terminals 3 and 5, between the termi-
nals 3 and 7. At this time, make sure that the measured
resistance value changes slowly within the standard value.
Standard value: 1.2
− 4.8 kΩ
.
AIR THERMO SENSOR CHECK <VEHICLES WITH REAR
COOLER OR REAR A/C>
NOTE: The temperature conditions when checking should not
exceed the range shown in the diagram.
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.
.
LEVER POSITION BATTERY
CONNECTION
LEVER
OPERATION
At the MAX COOL
position
• Connect
terminal 1 to the
positive battery
terminal
• Connect
terminal 2 to the
negative battery
terminal
The lever moves
from the MAX
COOL position to
the outside air
position
At the MAX HOT
position
• Connect
terminal 2 to the
positive battery
terminal
• Connect
terminal 1 to the
negative battery
terminal
The lever moves
from the MAX HOT
position to the
inside air position
AC001049AB
MAX HOT POSITION
MAX
COOL
POSITION
AC001043
RESISTANCE k
Ω
8
6
4
2
0
-10
0
10
20
30
40
TEMPERATURE ˚C(˚F)
AB
(14)
(32)
(50)
(86)
(104)
(68)
REAR HEATER UNIT
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-144
EXPANSION VALVE (MAGNET VALVE) CHECK <VEHICLES
WITH REAR A/C SYSTEM>
When battery voltage is applied to the magnetic valve terminal
No.1 and No.2 terminal is ground, operating sound should be
heard from the magnetic valve.
REAR BLOWER DISASSEMBLY AND REASSEMBLY
M1554010600029
1 2
AC205153
AC001679AB
1
4
2
5
3
DISASSEMBLY STEPS
1.
HARNESS ASSEMBLY
2.
RESISTOR
3.
AIR OUTLET CHANGEOVER
DAMPER MOTOR
4.
BLOWER MOTOR ASSEMBLY
5.
CASE
DISASSEMBLY STEPS (Continued)
REAR HEATER UNIT
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-145
INSPECTION
M1554010700026
.
BLOWER MOTOR CHECK
When battery voltage is applied between the terminals, check
that the motor operates. Also, check that there is no abnormal
noise.
.
RESISTOR CHECK
Use an ohmmeter to measure the resistance between the ter-
minals. Check that the measured value is at the standard
value.
AC001038 AB
TESTER CONNECTION
STANDARD VALUE
Ω
1
− 6
4.9
± 0.343
1
− 3
1.25
± 0.0875
AC001039AB
COMPRESSOR ASSEMBLY
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-146
COMPRESSOR ASSEMBLY
REMOVAL AND INSTALLATION
M1552004400105
Pre-removal Operation
Refrigerant discharging (Refer to
Post-installation Operation
• Refrigerant charging (Refer to
• Drive Belt Tension Adjustment (Refer to GROUP 00,
Maintenance Service
− Drive Belts
AC001052
1
2
3
5
6
AC001052AB
N
4
REMOVAL STEPS
<<A>>
1.
DRIVE BELT
<<B>>
2.
DISCHARGE HOSE
<<B>>
3.
SUCTION HOSE
4.
O-RING
<<C>>
>>A<<
5.
COMPRESSOR
6.
COMPRESSOR BRACKET
REMOVAL STEPS (Continued)
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