Mitsubishi Montero (2002-2004). Manual - part 67

HEATER UNIT

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-131

REMOVAL SERVICE POINTS

.

<<A>> SUCTION HOSE/LIQUID PIPE REMOVAL

CAUTION

Seal the pipes completely, otherwise the compressor oil 
and receiver will absorb water vapor easily, possibly dam-
aging the compressor and deteriorating performance.
Plug the disconnected pipe and the evaporator nipple to pre-
vent foreign material from getting into them.

HEATER UNIT DISASSEMBLY AND ASSEMBLY

M1551005400053

ACX01450

3

8

4

2

12

11

10

9

13

1

7

6

5

N

N

N

AB

DISASSEMBLY STEPS

1.

FOOT DUCT A

2.

FOOT DUCT C

3.

AIR THERMO SENSOR CLIP

4.

AUTO COMPRESSOR-ECU AND AIR 
THERMO SENSOR ASSEMBLY

5.

RESISTOR

6.

JOINT DUCT

7.

AIR DUCT SUB ASSEMBLY

8.

HEATER CORE

9.

FRONT PIPE ASSEMBLY

10. EXPANSION VALVE
11. PIPE
12. EVAPORATOR
13. CASE

DISASSEMBLY STEPS (Continued)

HEATER UNIT

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-132

BLOWER ASSEMBLY DISASSEMBLY AND ASSEMBLY

M1551005500135

ACX01407AB

2

3

1

DISASSEMBLY STEPS

1.

BLOWER MOTOR

2.

INSIDE/OUTSIDE AIR 
CHANGEOVER DAMPER MOTOR

3.

CASE

DISASSEMBLY STEPS 

BLOWER ASSEMBLY AND RESISTOR

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-133

BLOWER ASSEMBLY AND RESISTOR

REMOVAL AND INSTALLATION

M1551002800126

INSPECTION

M1551002900123

BLOWER FAN AND MOTOR CHECK

When battery voltage is applied between the terminals, check 
that the motor operates. Also, check that there is no abnormal 
noise.

ACX01452

2

1

AB

1.

BLOWER MOTOR

2.

RESISTOR

AC001038 AB

INSIDE/OUTSIDE AIR CHANGEOVER DAMPER MOTOR ASSEMBLY

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-134

RESISTOR CHECK

Use an ohmmeter to measure the resistance between the ter-
minals. Check that the measured value is at the standard 
value.

INSIDE/OUTSIDE AIR CHANGEOVER DAMPER MOTOR 

ASSEMBLY

REMOVAL AND INSTALLATION

M1551003400046

MEASUREMENT TERMINAL

STANDARD VALUE 

Ω

Between terminals 2 and 3 (LO) 2.79

Between terminals 1 and 2 (ML) 1.49

Between terminals 2 and 4 (MH) 0.36

AC002646

1 2

3 4

AB

AC001040AB

1

REMOVAL STEPS

•

GROVE BOX (REFER TO GROUP 52A, 
INSTRUMENT PANEL 

P.52A-2

.)

1. INSIDE/OUTSIDE AIR CHANGEOVER 

DAMPER MOTOR