Mitsubishi L200. Manual - part 768
USB BOX
CHASSIS ELECTRICAL
54A-439
COMMENTS ON TROUBLE SYMPTOM
If the sound replay is impossible with the USB/iPod
mode, USB cable, USB box, or multivision display
may be defective, or a communication error between
the multivision display and USB box may have
occurred.
PROBABLE CAUSES
• The multivision display may be defective.
• The USB box may be defective.
• The USB cable may be defective.
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check the multivision display operation.
Check if the multivision display work normally and
the sound is output.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Troubleshoot the MMCS. (Refer to
.)
STEP 2. Check the multivision display operation.
Display the A/V Mode screen, and check that the
"USB/iPod" item is displayed.
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Go to Step 3.
STEP 3. Check the USB cable.
Check that the USB cable is connected to the USB
box normally. Or check the USB cable for damage
such as bend.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Replace or repair the USB cable.
STEP 4. Connector check: C-174 USB box
connector
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the defective connector.
STEP 5. Voltage measurement at C-174 USB box
connector.
(1) Disconnect the connector, and measure at the
wiring harness-side connector.
(2) Voltage between connector terminal No.1 and the
body earth
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Go to Step 6.
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple SI : Silver
USB Box Communication Circuit
MULTIVISION DISPLAY
USB BOX
USB
CONNECTOR
USB CABLE