Mitsubishi Outlander GS45X. Manual - part 161

 

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Mitsubishi Outlander GS45X. Manual - part 161

 

 

USB BOX

TSB Revision

CHASSIS ELECTRICAL

54A-641

.

COMMENTS ON TROUBLE SYMPTOM

If the sound replay is impossible with the USB mode, 
the USB adapter, USB cable, USB box, or radio and 
CD player may be defective, or a communication 
error between the audio unit and USB box may have 
occurred.
NOTE: "LSI ERROR" is displayed on the audio dis-
play when the USB box has an internal error. In this 
case, the USB box has an internal error.

.

PROBABLE CAUSES

• The radio and CD player may be defective.

• The USB box may be defective.

• The USB adapter may be defective.

• The USB cable may be defective.

• Damaged harness wires and connectors

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

USB Box Communication Circuit

RADIO AND CD PLAYER

USB BOX

USB
ADAPTER

USB CABLE

ACA02654

AG

C-135

C-14

Connector: C-14, C-135

ACA02655AB

Connector: C-307, C-317

C-307 (B)

C-317

USB BOX

TSB Revision

CHASSIS ELECTRICAL

54A-642

STEP 1. Check the radio and CD player operation.
Check if the radio and CD player work normally and the sound 
is output.
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Troubleshoot the radio and CD player (Refer to 

P.54A-363

).

Step 2. Check the external sounds input mode.
Check if the audio unit is switched to the "USB mode".
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Switch to the external sounds input mode.

STEP 3. Check the audio display
Check if the audio display is displayed the "LSI ERROR".
Q: Is the check result normal?

YES : Go to Step 13.
NO :  Go to Step 4.

STEP 4. Check the USB adapter.
Check if the USB adapter works normally.(Refer to 

P.54A-425

)

Q: Is the check result normal?

YES : Go to step 5.
NO :  Replace the USB adapter.

STEP 5. Check the USB cable.
Check that the USB cable is connected to the USB adapter or 
USB box normally. Or check the USB cable for damage such 
as bend.
Q: Is the check result normal?

YES : Go to step 6.
NO :  Replace or repair the USB cable.

STEP 6. Check USB box connector C-135 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is USB box connector C-135 in good condition?

YES : Go to step 7.
NO :  Repair the defective connector.

USB BOX

TSB Revision

CHASSIS ELECTRICAL

54A-643

STEP 7. Check the power supply circuit to the USB box. 
Measure the voltage at USB box connector C-135.
(1) Disconnect USB box connector C-135, and measure the 

voltage available at the wiring harness-side connector.

(2) Measure the voltage between terminal 1 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 9.
NO :  Go to Step 8.

STEP 8. Check the wiring harness between USB box 
connector C-135 (terminal 1) and fusible link (36).

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

cuit.

NOTE: Also check ETACS-ECU connector C-307, C-317 for 
loose, corroded, or damaged terminals, or terminals pushed 
back in the connector. If ETACS-ECU connector C-307, C-317 
is damaged, repair or replace the connector as described in 
GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: USB box connector C-135 (terminal 1) and fusible link 

(36) 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. 

STEP 9. Check the ground circuit to the USB box. Measure 
the resistance at USB box connector C-135.
(1) Disconnect USB box connector C-135, and measure the 

resistance available at the wiring harness side of the 
connector.

(2) Measure the resistance between terminal 17 and ground.

OK: The resistance should be 2 ohms or less

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 11.
NO :  Go to Step 10.

AC702831

Harness side: C-135

DO

AC702818 EN

Harness side: C-135

USB BOX

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CHASSIS ELECTRICAL

54A-644

STEP 10. Check the wiring harness between USB box 
connector C-135 (terminal 17) and ground.

• Check the ground wires for open circuit.

Q: Is the wiring harness between USB box connector C-135 

(terminal 17) 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. 

STEP 11. Check radio and CD player connector C-14 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is radio and CD player connector C-14 in good 

condition?
YES : 
Go to step 12.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 12. Check the wiring harness between radio and CD 
player connector C-14 (terminal 17, 12, 3, 10, 1) and USB 
box connector C-135 (terminal 15, 8, 22, 16, 2).

• Check the communication line for open circuit and short cir-

cuit.

Q: Is the wiring harness between radio and CD player 

connector C-14 (terminal 17, 12, 3, 10, 1) and USB box 
connector C-135 (terminal 15, 8, 22, 16, 2) in good 
condition?
YES : 
Go to Step 13.
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.

STEP 13. Replace the USB box temporarily, and check the 
trouble symptom.
Replace the USB box temporarily, and check that the sound is 
output from the speaker.
Q: Is the check result normal?

YES : Replace the USB box.
NO :  Replace the radio and CD player.

 

 

 

 

 

 

 

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