Mitsubishi L200. Manual - part 718

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-239

Inspection Procedure 2: No sound is heard. <Vehicles without audio amplifier>

CAUTION

Before replacing the radio and CD player, ensure that the power supply circuit, the earth circuit and 
the communication circuit are normal.

TWEETER (RH)

RADIO AND CD PLAYER

REAR DOOR 
SPEAKER (LH)

REAR DOOR 
SPEAKER (RH)

FRONT DOOR 
SPEAKER (RH)

FRONT DOOR 
SPEAKER (LH)

TWEETER (LH)

Speaker System Circuit

Wire colour code 
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue 
BR : Brown     O : Orange     GR : Grey     R : Red     P : Pink     V : Violet     PU : Purple     SI : Silver

<DOUBLE CAB>

NOTE

:LHD
:RHD

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-240

COMMENTS ON TROUBLE SYMPTOM
If the audio sound is not output, the radio and CD 
player may have a problem. In addition, if any of the 
speakers is short-circuited, the protection circuit 
inside the radio and CD player disables all the 
speakers to sound. Therefore, if all the speakers do 
not output sound, the speaker circuit may be shorted 
or the speaker may be defective.

PROBABLE CAUSES

• Malfunctions of radio and CD player

• Malfunction of speaker or tweeter

• Damaged harness wires and connectors

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-241

DIAGNOSIS PROCEDURE

STEP 1. Check the following connectors.
Check the following connectors:

• E-19 front door speaker (LH) connector

• E-11 front door speaker (RH) connector

• E-24 tweeter (LH) connector

• E-25 tweeter (RH) connector

• E-22 rear door speaker (LH) connector <double 

cab>

• E-09 rear door speaker (RH) connector <double 

cab>

Q: Are all the connectors in good condition?

YES : 

Go to Step 2.

NO : 

Repair the defective connector.

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

P.54A-

445

.

(2) Check that the speaker or tweeter outputs the 

noise when the voltage of 5 V is applied to the 
speaker or tweeter connector terminal.

Q: Do the speaker or tweeter output the noise?

YES : 

Go to Step 3.

NO : 

Replace the speaker or tweeter.

STEP 3. Connector check: C-125 radio and CD 
player connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the defective connector.

AC502334AB

Harness side

Connector: E-09

AC509954AR

Harness side

Connectors: E-11, E-25

E-11

E-11

Harness side

E-25

E-25

AC509952

Connectors: E-19, E-24

AS

Harness side

Harness side

E-19

E-24

E-24

E-19

AC502333AB

Connector: E-22

Harness side

AC707572 AB

5 V

AC903856AE

Harness side

Connector: C-125 <LHD>

AC903868

AE

Harness side

Connector: C-125 <RHD>

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-242

STEP 4. Check the wiring harness between the 
speaker or tweeter connector terminal and the 
radio and CD player connector terminal.
Check the communication lines for short circuit.