Mitsubishi Montero (2002-2004). Manual - part 56

 

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Mitsubishi Montero (2002-2004). Manual - part 56

 

 

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-87

STEP 19. Check the wiring harness between rear heater 
switch connector E-21 (terminal 2) <vehicles with rear 
heater> or rear cooler switch connector E-17 (terminal 2) 
<vehicles with rear cooler> or rear A/C switch connector E-
22 (terminal 2) <vehicles with rear A/C> and ground.
Q: Is the wiring harness between rear heater switch 

connector E-21 (terminal 2) <vehicles with rear heater> 
or rear cooler switch connector E-17 (terminal 2) 
<vehicles with rear cooler> or rear A/C switch connector 
E-22 (terminal 2) <vehicles with rear A/C> and ground in 
good condition?
YES : 
The rear blower motor should operate normally.
NO :  Repair the wiring harness. The rear blower motor 

should operate normally.

AC204193

CONNECTORS : E-17, E-21, E-22

AC

E-17, E-21, E-22

E-17 <VEHICLES WITH REAR COOLER>
E-21 <VEHICLES WITH REAR HEATER>
E-22 <VEHICLES WITH REAR A/C>

HARNESS SIDE

1
7

2
8

10

11

5

13

6

14

12

4

9

3

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-88

STEP 20. Check rear blower relay connector D-213 and 
rear A/C unit connector G-06 <vehicles with rear heater or 
rear cooler> or rear A/C unit connector G-22 <vehicles with 
rear A/C> for damage.
Q: Is rear blower relay connector D-213 and rear A/C unit 

connector G-06 <vehicles with rear heater or rear 
cooler> or rear A/C unit connector G-22 <vehicles with 
rear A/C> in good condition?
YES : 
Go to Step 21.
NO :  Repair or replace the connector. Refer to GROUP 

00E, Harness Connector Inspection 

P.00E-2

. The 

blower motor should operate normally.

AC204173

CONNECTOR : D-213

AY

JUNCTION 
BLOCK SIDE

2 1

5

4

3

AC204197

CONNECTORS : G-06, G-22

AB

G-06

G-22

G-06

HARNESS SIDE

G-22

HARNESS SIDE

1

5

7

8

2

6

10

4

9

3

1

5

7

8

2

6

10

4

9

3

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-89

STEP 21. Check the wiring harness between rear blower 
relay connector D-213 (terminal 4) and rear A/C unit 
connector G-06 (terminal 7) <vehicles with rear heater or 
rear cooler> or rear A/C unit connector G-22 (terminal 7) 
<vehicles with rear A/C>.
Q: Is the wiring harness between rear blower relay 

connector D-213 (terminal 4) and rear A/C unit 
connector G-06 (terminal 7) <vehicles with rear heater 
or rear cooler> or rear A/C unit connector G-22 (terminal 
7) <vehicles with rear A/C> in good condition?
YES : 
The rear blower motor should operate normally.
NO :  Repair the wiring harness. The rear blower motor 

should operate normally.

STEP 22. Check the rear blower motor.
When battery voltage is applied between the terminals, check 
that the motor operates. Also, check that there is no abnormal 
noise.
Q: Is the check result normal? 

YES :  Go to Step 23.
NO :  Replace the rear blower motor.

AC204173

CONNECTOR : D-213

AY

JUNCTION 
BLOCK SIDE

2 1

5

4

3

AC204197

CONNECTORS : G-06, G-22

AB

G-06

G-22

G-06

HARNESS SIDE

G-22

HARNESS SIDE

1

5

7

8

2

6

10

4

9

3

1

5

7

8

2

6

10

4

9

3

AC001038 AB

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-90

STEP 23. Measure the resistance at rear blower motor 
connector G-06-1 <vehicles with rear heater or rear cooler> 
or G-22-1 <vehicles with rear A/C>.
(1) Disconnect connector G-06-1 or G-22-1 and measure the 

resistance at the wiring harness side. 

(2) Rear heater switch: "3" position <vehicles with rear heater>
(3) Rear cooler switch: "3" position <vehicles with rear cooler>
(4) Rear A/C switch: "3" position <vehicles with rear A/C>

(5) Measure the resistance value between terminal 1 and 

ground.

• 2 ohm or less

Q: Does the measured resistance value correspond with 

this range?
YES : 
 Go to Step 30.
NO :   Go to Step 24.

STEP 24. Check the rear blower switch.
Follow the table below to check the rear blower switch for conti-
nuity.

Q: Is the check result normal? 

YES :  Go to Step 25.
NO :  Replace the rear heater switch <vehicles with rear 

heater>, rear cooler switch <vehicles with rear 
cooler> or rear A/C switch <vehicles with rear A/C>.

AC204699

CONNECTORS :G-06-1, G-22-1

AC

G-06-1
G-22-1

G-06-1

HARNESS SIDE

G-22-1

HARNESS SIDE

<VEHICLES WITH A/C>

<VEHICLES WITHOUT A/C>

1
2

1
2

AC204738 CL

HARNESS SIDE : G-06-1, G-22-1

1
2

BLOWER SWITCH 
POSITION

TESTER 
CONNECTION 

SPECIFIED 
CONDITION

1

− 4

Less than 2 ohms

2

− 6

Less than 2 ohms

3

− 7

Less than 2 ohms

AC205161

1
7

2
8

10 11

5

13

6

14

12

4

9

3

 

 

 

 

 

 

 

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