Mitsubishi Montero (2004+). Manual - part 542

RADIO WITH TAPE PLAYER AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-137

INSPECTION PROCEDURE 3: No Sound from One Speaker. <Vehicles without Amplifier>

Speaker System Circuit <Vehicles without Amplifier>

RADIO WITH TAPE PLAYER AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-138

.

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-139

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-190

.

(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-140

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