Mitsubishi Montero (2002-2004). Manual - part 53

 

  Index      Mitsubishi     Mitsubishi Montero - service repair manual 2002-2004 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  51  52  53  54   ..

 

 

Mitsubishi Montero (2002-2004). Manual - part 53

 

 

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-75

DIAGNOSIS

STEP 1. Check the rear blower relay continuity.
Follow the table below to check the rear blower relay for conti-
nuity.

Q: Is the rear blower relay continuity in good condition?

YES : Go to Step 2.
NO :  Replace the rear blower relay. The rear blower motor 

should operate normally.

STEP 2. Check the rear fan switch.
Follow the table below to check the rear fan switch for continu-
ity.

Q: Is the check result normal? 

YES :  Go to Step 3.
NO :  Replace the rear fan switch.

STEP 3. Check the rear fan control switch.
Follow the table below to check the rear fan control switch for 
continuity.

Q: Is the check result normal? 

YES :  Go to Step 4.
NO :  Replace the rear fan control switch.

BATTERY VOLTAGE

TESTER 
CONNECTION 

SPECIFIED 
CONDITION

Not applied

− 5

Open circuit

• Connect terminal 1 

to the positive 
battery terminal

• Connect terminal 3 

to the negative 
battery terminal

− 5

Less than 2 ohms

AC002644AB

REAR BLOWER RELAY

REAR FAN 
SWITCH 
POSITION

TESTER 
CONNECTION 

SPECIFIED 
CONDITION

OFF

− 9

Less than 2 ohms

ON (while pushing) 2 

− 8

Less than 2 ohms

AC205161

1
7

2
8

10 11

5

13

6

14

12

4

9

3

REAR FAN 
CONTROL SWITCH 
POSITION

TESTER 
CONNECTION 

SPECIFIED 
CONDITION

OFF

− 2

Less than 2 ohms

ON

− 5

Less than 2 ohms

AC001045 AB

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-76

STEP 4. Measure the voltage at rear blower unit connector 
G-06 <vehicles with rear heater or rear cooler> or G-22 
<vehicles with rear A/C>. 
(1) Disconnect rear blower unit connector G-06 <vehicles with 

rear heater or rear cooler> or G-22 <vehicles with rear A/
C>, and measure the voltage at the wiring harness side.

(2) Turn the rear fan switch to the "ON" position.

(3) Measure the voltage between terminal 7 and ground.

• The measured value should be approximately 12 volts 

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES :  Go to Step 22.
NO :   Go to Step 5.

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

AC204738

HARNESS SIDE : G-06, G-22

CQ

1

5

7

8

2

6

10

4

9

3

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-77

STEP 5. Measure the voltage at rear blower relay 
connector D-213. 
(1) Disconnect rear blower relay connector D-213, and 

measure the voltage at the junction block side.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 1 and ground.

• The measured value should be approximately 12 volts 

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES :  Go to Step 8.
NO :   Go to Step 6.

STEP 6. Check rear blower relay connector D-213 for 
damage.
Q: Is rear blower relay connector D-213 in good condition?

YES : Go to Step 7.
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

AC204738

JUNCTION BLOCK SIDE : D-213

CR

2 1

5

4

3

AC204173

CONNECTOR : D-213

AY

JUNCTION 
BLOCK SIDE

2 1

5

4

3

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-78

STEP 7. Check the wiring harness between rear blower 
relay connector D-213 (terminal 1) and the ignition switch 
(IG2).

NOTE: Also check joint connector (6) D-01, junction block con-
nectors D-208 and D-210. If joint connector (6) D-01, junction 
block connectors D-208 or D-210 is damaged, repair or replace 
the connector as described in GROUP 00E, Harness Connec-
tor Inspection 

P.00E-2

.

Q: Is the wiring harness between rear blower relay 

connector D-213 (terminal 1) and the ignition switch 
(IG2) in good condition?
YES : 
The rear blower motor should operate normally.
NO :  Repair the wiring harness. The rear blower motor 

should operate normally.

AC204173

CONNECTOR : D-213

AY

JUNCTION 
BLOCK SIDE

2 1

5

4

3

AC204170

CONNECTOR: D-01

AB

9 10

8

6 7

31 32

30

29

18 19 20 21

5

4

2

1

3

27

26

24

23

25

12 13 14 15 16 17

28

11
22
33

AC204191

CONNECTORS: D-208, D-210

D-208

AC

HARNESS SIDE

HARNESS SIDE

D-210

D-208

D-210

1

2

3

5

6

4

1

2

7 6

3

9

4

11

12

10

13

5

8

 

 

 

 

 

 

 

Content   ..  51  52  53  54   ..