Mitsubishi Montero Sport (2004+). Manual - part 552

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-195

RADIO AND
CD PLAYER

REAR DOOR
SPEAKER

FRONT
DOOR
SPEAKER

FRONT SPEAKER

TWEETER

(LH)

FRONT
DOOR
SPEAKER

(RH)

(LH)

(LH)

TWEETER

(RH)

(RH)

AMPLIFIER

DIN CABLE

(LH)

(RH)

Speaker System Circuit <Vehicles with Amplifier>

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-196

.

CIRCUIT OPERATION

<Vehicles without amplifier>
The sound is heard from the speaker according to 

audio signal output from the radio and CD player.

<Vehicles with amplifier>
The sound signals are sent from the radio and CD 

player into the amplifier. After the signals are 
amplified and filtered, the sound signals are sent 
to the speaker.

.

AC003498

AC

CONNECTORS: C-12, C-20

C-12

C-20 (B)

AC003500

CONNECTORS: C-36, C-39, C-43

C-39

C-36 (B)

C-43

AD

AC003499

CONNECTORS: E-01, E-11

E-11

E-01

AB

AC003501

CONNECTORS: E-31, E-43

E-43

E-31

AB

AC003492

AD

CONNECTORS: F-03, F-13

FRONT 
DOOR (LH)

F-03

F-13 (B)

AC003496

AC

CONNECTOR: F-10

REAR 
DOOR
 (LH)

F-10 (B)

AC003493

AC

CONNECTORS: F-16, F-25

F-16

F-25 (B)

AC003497AD

CONNECTOR: F-22

REAR 
DOOR 
(RH)

F-22 (B)

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-197

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

.

TROUBLESHOOTING HINTS

• Malfunction of the speaker

• Damaged harness wire or connector

• Malfunction of the radio and CD player 

• Malfunction of the amplifier <vehicles with ampli-

fier>

• Malfunction of the DIN cable <vehicles with 

amplifier>

.

DIAGNOSIS

STEP 1A. Check which speaker has no sound on the 
vehicles without amplifier.
(1) Use the speaker test to determine which speaker does not 

sound.

Q: Which speaker has no sound on the vehicles without 

amplifier?
Front door speaker (LH) and/or tweeter (LH) : Go to Step 

2.

Front door speaker (RH) and /or tweeter (RH) : Go to 

Step 7.

Rear door speaker (LH) : Go to Step 12.
Rear door speaker (RH) : Go to Step 17.

STEP 1B. Check which speaker has no sound on the 
vehicles with amplifier.
(1) Use the speaker test to determine which speaker does not 

sound.

Q: Which speaker has no sound on the vehicles with 

amplifier?
Front speaker (LH) and /or tweeter (LH) : Go to Step 22
Front speaker (RH) and /or tweeter (RH) : Go to Step 27
Front door speaker (LH) : Go to Step 32.
Front door speaker (RH) : Go to Step 37.
Rear door speaker (LH) : Go to Step 42.
Rear door speaker (RH) : Go to Step 47.

STEP 2. Check the speaker.
(1) Remove the speaker.

(2) Check that the speaker generates noise when a five-volt 

voltage is applied on the front door speaker terminal.

Q: Is the speaker generating noise?

YES : Go to Step 3.
NO :  Replace the speaker. The speaker should sound.

ACX01868AB

5V

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-198

STEP 3. Check tweeter (LH) connector F-03 and/or front 
door speaker (LH) connector F-13 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.

Q: Are harness connectors F-03 and F-13 in good 

condition?
YES : Go to Step 4.
NO :  Repair or replace them. Refer to GROUP 00E, 

Harness Connector Inspection 

P.00E-2

. The front 

door speaker (LH) and/or tweeter (LH) should sound.

STEP 4. Check the harness wires between radio and CD 
player connector C-62 (terminal No.5 and 13) and tweeter 

(LH) connector F-03 (terminal No.1 and 2) and/or front door 
speaker (LH) connector F-13 (terminal No.1 and 2).

AC200782

2 1

2

1

CONNECTORS: F-03, F-13

F-03

F-13 (B)

AB

F-03

COMPONENT SIDE

F-13 

COMPONENT SIDE

FRONT 
DOOR (LH)

AC200783

1

7

2

8

10

11

5

13

6

14

12

4

9

3

CONNECTOR: C-62

COMPONENT SIDE

AB

C-62

AC200782

2 1

2

1

CONNECTORS: F-03, F-13

F-03

F-13 (B)

AB

F-03

COMPONENT SIDE

F-13 

COMPONENT SIDE

FRONT 
DOOR (LH)