Mitsubishi L200. Manual — part 722

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-255

Q: Is the check result normal?

YES :

Go to Step 11.

NO :

Repair the wiring harness.

STEP 11. Check the wiring harness between C-
125 radio and CD player connector terminal No.1,
2, 5, 6, 7, 8, 13, 14 and D-30 audio amplifier
connector No.22, 21, 29, 28, 31, 30, 38, 37.

• Check the communication lines for short circuit.

NOTE: Prior to the wiring harness inspection, check
intermediate connectors C-15 and C-59, and repair if
necessary.

Q: Is the check result normal?

YES :

Go to Step 12.

NO :

Repair the wiring harness.

STEP 12. Retest the system
Check if the sound is output from all the speakers.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

NO :

Go to Step 13.

STEP 13. Replace the audio amplifier temporarily,
and check the trouble symptom.
Replace the audio amplifier temporarily, and check
that the sound is output from all the speakers.

Q: Is the check result normal?

YES :

Replace the audio amplifier.

NO :

Replace the radio and CD player.

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-256

Inspection Procedure 3: No sound is heard from one of the speaker. <Vehicles without audio
amplifier>

CAUTION

Whenever the radio and CD player is replaced,
ensure that the input signal circuit is normal.

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-257

COMMENTS ON TROUBLE SYMPTOM
The cause is probably a faulty speaker circuit sys-
tem.

PROBABLE CAUSES

• Malfunction of speaker.

• Malfunction of tweeter.

• Damaged wiring harness or connector.

• Malfunction of radio and CD player.

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-258

DIAGNOSIS PROCEDURE

STEP 1. Checking with audio speaker test
Perform the audio speaker test, and check which
speaker does not output the sound. Refer to

P.54A-

294

.

NOTE: In the following procedure, check the speaker
or tweeter that is abnormal.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

Use Troubleshooting/Inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

NO :

Go to Step 2.

STEP 2. Connector check: E-19 <front-LH>, E-11
<front-RH>, E-22 <rear-LH> or E-09 <rear-RH>
door speaker connector, E-24 <LH>, E-25 <RH>
tweeter connector

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the defective connector.

STEP 3. Check the speaker or tweeter.
(1) Remove the speaker or tweeter. Refer to

P.54A-

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