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
).
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
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
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
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
TSB Revision
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
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
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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