Mitsubishi Montero (2002-2004). Manual — part 490

RADIO WITH TAPE PLAYER AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-131

.

CIRCUIT OPERATION
The speakers sound according to audio signal output
from the radio and CD player.

.

TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty speaker circuit sys-
tem.

.

TROUBLESHOOTING HINTS

• Malfunction of the speaker.

• Damaged wiring harness or connector.

• Malfunction of the radio and CD player.

AC204170

CONNECTORS : D-06, D-25, D-125

DI

D-06

D-25

D-125

AC204171

CONNECTORS : D-15, D-111

AX

D-111

D-15

AC204180

CONNECTORS : H-06, H-08, H-12

AL

H-06

H-08

H-12

AC204181

CONNECTORS : H-15, H-22, H-26

AL

H-15

H-22

H-26

AC204178

CONNECTOR : F-12

AK

AC204177

CONNECTOR : F-23

AN

RADIO WITH TAPE PLAYER AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-132

DIAGNOSIS

STEP 1. Check to see which speaker does not sound.
Determine which speaker does not sound.
Q: Which speaker does not sound?

Tweeter (LH) : Go to Step 2.
Tweeter (RH) : Go to Step 5.
Front door speaker (LH) : Go to Step 8.
Front door speaker (RH) : Go to Step 11.
Rear door speaker (LH) : Go to Step 14.
Rear door speaker (RH) : Go to Step 17.
Front door speaker (LH) and tweeter (LH) : Go to Step

20.

Front door speaker (RH) and tweeter (RH) : Go to Step

22.

STEP 2. Check the tweeter (LH).
(1) Remove the tweeter (LH). Refer to

P.54A-183

.

(2) Check that the tweeter (LH) generates noise when a five-

volt voltage is applied on the tweeter (LH) terminal.

Q: Is the tweeter (LH) generating noise?

YES : Go to Step 3.
NO : Replace the tweeter (LH). The tweeter (LH) should

sound.

ACX01868AB

5V

RADIO WITH TAPE PLAYER AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-133

STEP 3. Check tweeter (LH) connector H-06 and radio and
CD player connector D-06 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are harness connectors H-06 and D-06 in good

condition?
YES : Go to Step 4.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. The door speaker (LH) should sound.

AC204170

CONNECTOR : D-06

CS

HARNESS SIDE

1
7

2
8

10

11

5

13

6

14

12

4

9

3

AC204180

CONNECTOR : H-06

AI

HARNESS SIDE

1

2

RADIO WITH TAPE PLAYER AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-134

STEP 4. Check the wiring harness between tweeter (LH)
connector H-06 (terminals 1 and 2) and radio and CD
player connector D-06 (terminals 5 and 13).
NOTE: Also check intermediate connector D-25. If intermediate
connector D-25 is damaged, repair or replace the connector as
described in GROUP 00E, Harness Connector Inspection

P.00E-2

.

Q: Is the wiring harness between tweeter (LH) connector H-

06 (terminals 1 and 2) and radio and CD player
connector D-06 (terminals 5 and 13) in good condition?
YES : Repair or replace the radio and CD player. The

tweeter (LH) should sound.

NO : Repair the wiring harness. The tweeter (LH) should

sound.

STEP 5. Check the tweeter (RH).
(1) Remove the tweeter (RH). Refer to

P.54A-183

.

(2) Check that the tweeter (RH) generates noise when a five-

volt voltage is applied on the tweeter (RH) terminal.

Q: Is the tweeter (RH) generating noise?

YES : Go to Step 6.
NO : Replace the tweeter (RH). The tweeter (RH) should

sound.

AC204188

CONNECTORS : D-06, D-25

D-06

D-06

D-25

BJ

D-25

HARNESS SIDE

1
7

2
8

10

11

5

13

6

14

12

4

9

3

10

9

31

30

20 21

7

6

28

17 18

8

19

29

4

3

25 26

14 15

1

23

12

2

13

24

5

16

27

11

22

32

AC204180

CONNECTOR : H-06

AI

HARNESS SIDE

1

2

ACX01868AB

5V