Mitsubishi L200. Manual — part 743

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)

CHASSIS ELECTRICAL

54A-339

DIAGNOSIS PROCEDURE

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

P.54A-305

.

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

Cope with Intermittent Malfunction ).

NO (Either a speaker is abnormal) :

Go to Step 2.

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

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)

CHASSIS ELECTRICAL

54A-340

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: Is the check result normal?

YES :

Go to Step 4.

NO :

Replace the speaker or tweeter.

STEP 4. Connector check: C-170 multivision
display connector.

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Repair the defective connector.

AC903853

AV

Connector: C-170 <LHD>

C-170 (GR)

Harness side

AC903868

BF

Connector: C-170 <RHD>

C-170 (GR)

Harness side

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)

CHASSIS ELECTRICAL

54A-341

STEP 5. Check the wire harness between the
speaker or tweeter connector terminal and the
multivision display connector terminal.
Check the communication lines for open circuit and
short circuit.

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)

CHASSIS ELECTRICAL

54A-342

•

AC903939

Connectors: C-15, C-58, C-170 <LHD>

AB

C-58

C-15

C-15

C-58

C-170

C-170 (GR)

Harness side

AC903891

Connectors: C-15, C-58, C-170 <RHD>

AC

C-58

C-15

C-15

C-58

C-170

C-170 (GR)

Harness side

AC509952

Connector: E-19

AB

Harness side