Mitsubishi Outlander GS45X. Manual - part 125

MMCS

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CHASSIS ELECTRICAL

54A-497

STEP 11. Retest the system
Temporarily replace the multivision display and check if the 
sound is output.
Q: Is the check result normal?

YES : Replace the multivision display.
NO :  Perform Inspection Procedure 3 "No sound is heard 

from one of the speakers. <Vehicles without audio 
amplifier>" (Refer to 

P.54A-506

.)

MMCS

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CHASSIS ELECTRICAL

54A-498

Inspection Procedure 2: No sound is heard. <Vehicles with audio amplifier>

CAUTION

Before replacing the multivision display, ensure that the power supply circuit, the ground circuit, and 
the communication circuit are normal. (Check that the voltage is 10 V or more.)

Multivision Display System Circuit

AUDIO AMPLIFIER

FUSIBLE 
LINK

36

MULTIVISION DISPLAY

ENGINE 
COMPARTMENT

RELAY BOX 

MMCS

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.

COMMENTS ON TROUBLE SYMPTOM

If the audio sound is not output, the multivision dis-
play, audio amplifier, or power supply circuit of audio 
amplifier may have a problem, or the option coding 
information may be inconsistent.

.

PROBABLE CAUSES

• Malfunctions of multivision display

• Malfunction of audio amplifier

• Option coding information inconsistency

• Damaged harness wires and connectors

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A

STEP 1. Check the multivision display operation.
Q: Check the sources from which the sound is not output.

No sound only from radio : Perform Inspection Procedure 

6 "The AM/FM radio broadcasting cannot be 
received." (Refer to 

P.54A-537

.)

No sound only when the CD is played : Perform 

Inspection Procedure 8 "CD/DVD cannot be Played." 
(Refer to 

P.54A-539

.) 

No sound only when the DVD is played : Perform 

Inspection Procedure 8 "CD/DVD cannot be 
Played."(Refer to 

P.54A-539

.) or Inspection 

Procedure 9 "Image of a DVD is Played, but no 
Sound is Played." (Refer to 

P.54A-541

.)

No sound only when the music server is used : Go to 

Step 8.

No sound from any of the sources : Go to Step 2.

AC709494

AE

Connectors: C-06, C-10, C-15, C-22

C-10 (GR)

C-22

C-06

C-15

ACA02653AB

Connector: C-129

ACA02660AB

Connectors: D-126, D-127

C-127

C-126

MMCS

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CHASSIS ELECTRICAL

54A-500

STEP 2. Check the ETACS-ECU coding data.
Use scan tool MB991958 to diagnose the CAN bus lines.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect the 

Scan Tool (M.U.T.-III) 

P.54A-458

."

(2) Turn the ignition switch to "ON" position.
(3) Operate the scan tool MB991958 to read the ETACS-ECU 

option coding information (Refer to GROUP 00, Coding 
Table 

P.00-44

).

(4) Check that the "Speaker" is set to "Premium."
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Operate scan tool MB991958 to set the option coding 

"Speaker" to "Premium," and check the trouble 
symptom.

STEP 3. Check the MMCS service mode, CAN 
communication confirmation, and coding data.
(1) Display the CAN Communication Confirmation and Coding 

Data of the MMCS service mode. (Refer to 

P.54A-443

)

(2) Check if PREMIUM is displayed.
Q: Is the check result normal?

YES : Go to step 4.
NO :  Go to step 5.

STEP 4. Check the service data log for the MMCS service 
mode.
With the service data log of MMCS service mode displayed, 
check if the service data log for SP (speaker) is displayed. 
(Refer to 

P.54A-443

)

Q: Is the service data log for SP (speaker) displayed?

YES : Go to step 5.
NO :  Go to step 8.

STEP 5. Using scan tool MB991958, diagnose the CAN bus 
line.
Use scan tool MB991958 to diagnose the CAN bus lines.
(1) Turn the ignition switch to "ON" position.
(2) Diagnose the CAN bus line.
Q: Is the check result normal?

YES : Go to Step 6.
NO :  Repair the CAN bus line.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB