Mitsubishi Outlander GS45X. Manual - part 93

RADIO AND CD PLAYER

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CHASSIS ELECTRICAL

54A-369

.

COMMENTS ON TROUBLE SYMPTOM

If the audio sound is not output, the radio and CD 
player, 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 radio and CD player

• 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

AC703148 AH

Connectors: C-14, C-22

C-14

C-22

ACA02653AB

Connector: C-129

ACA02660AB

Connectors: D-126, D-127

C-127

C-126

RADIO AND CD PLAYER

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CHASSIS ELECTRICAL

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STEP 1. Check the ETACS-ECU coding data.
(1) Operate the scan tool MB991958 to read the ETACS-ECU 

option coding information. (Refer to GROUP 00, Coding List 

P.00-44

.)

(2) Check that the "Number of speaker" is set to "Premium."
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Operate scan tool MB991958 to set the option coding 

"Speaker" to "Number of speaker," and check the 
trouble symptom.

STEP 2. Check audio amplifier connector D-126 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is audio amplifier connector D-126 in good condition?

YES : Go to Step 3.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

RADIO AND CD PLAYER

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CHASSIS ELECTRICAL

54A-371

STEP 3. Check the ground circuit to the rear monitor. 
Measure the resistance at audio amplifier connector D-126.
(1) Disconnect audio amplifier connector D-126, and measure 

the resistance available at the wiring harness side of the 
connector.

(2) Measure the resistance between terminal 24 and ground.

OK: The resistance should be 2 ohms or less.

(3) Measure the resistance between terminal 31 and ground.

OK: The resistance should be 2 ohms or less. 

(4) Measure the resistance between terminal 32 and ground.

OK: The resistance should be 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

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

STEP 4. Check the wiring harness between audio amplifier 
connector D-126 (terminal 24, 31, 32) and ground.

• Check the ground wires for open circuit.

Q: Is the wiring harness between audio amplifier connector 

D-126 (terminal 24, 31, 32) and ground in good 
condition?
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 

P.00-15

).

NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. 

AC702818 BB

Harness side: D-126

AC702818 BC

Harness side: D-126

AC702818 BD

Harness side: D-126

RADIO AND CD PLAYER

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CHASSIS ELECTRICAL

54A-372

STEP 5. Check the power supply circuit to the ETACS-ECU. 
Measure the voltage at audio amplifier connector D-126.
(1) Disconnect audio amplifier connector D-126, and measure 

the voltage available at the wiring harness-side connector.

(2) Measure the voltage between terminal 25 and ground.

OK: The voltage should measure approximately 12 
volts (battery positive voltage).

(3) Measure the voltage between terminal 35 and ground.

OK: The voltage should measure approximately 12 
volts (battery positive voltage).

(4) Measure the voltage between terminal 36 and ground.

OK: The voltage should measure approximately 12 
volts (battery positive voltage).

Q: Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 7.
NO :  Go to Step 6.

STEP 6. Check the wiring harness between audio amplifier 
connector D-126 (terminal 25, 35, 36) and fusible link (36).

• Check the power supply lines for open circuit and short cir-

cuit.

Q: Is the wiring harness between audio amplifier connector 

D-126 (terminal 25, 35, 36) and fusible link (36) in good 
condition?
YES : Go to Step 7.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. 

AC702831AU

Harness side: D-126

AC702831AT

Harness side: D-126

AC702831AV

Harness side: D-126