Mitsubishi Grandis. Manual - part 384
CENTRE DISPLAY
CHASSIS ELECTRICAL
54A-155
YES :
The procedure is complete. (If no
malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunctions
).
NO :
Replace radio and CD player and then go to
step 4.
Step 4. Retest the system.
Confirm that the radio and CD player operation
screen is displayed normally.
Q: Is the check result satisfactory?
YES :
The procedure is complete. (If no
malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunctions
).
NO :
Replace centre display and then go to step
5.
Step 5. Retest the system
Confirm that the radio and CD player operation
screen is displayed normally.
Q: Is the check result satisfactory?
YES :
The procedure is complete.
NO :
Go to step 1.
Code No.U1602, U1603 M-DATA open, short
CIRCUIT OPERATION
Refer to
COMMENTS ON TROUBLE SYMPTOM
The radio and CD player operation screen will be
frozen if the centre display have received abnormal
data from the radio and CD player and via M-bus
communication.
POSSIBLE CAUSES
• Malfunction of centre display unit
• Malfunction of radio and CD player
• Damaged harness wires and connectors
DIAGNOSTIC PROCEDURE
Step 1. Connector check: Radio and CD player
connector C-22 and centre display unit
connector C-07.
Q: Is radio and CD player connector C-22 and centre
display unit connector C-07 in good condition?
YES :
Go to Step 2.
NO :
Repair the defective connector.
Step 2. Check the wiring harness between radio
and CD player connector C-22 (terminal 26) and
centre display unit connector C-07 (terminal 7).
Q: Is the wiring harness between radio and CD player
connector C-22 (terminal 26) and centre display
unit connector C-07 (terminal 7) in good condition?
YES :
Go to Step 3.
NO :
Repair the wiring harness.
Step 3. Retest the system.
Confirm that the radio and CD player operation
screen is displayed normally.
Q: Is the check result satisfactory?
YES :
The procedure is complete. (If no
malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunctions
).
NO :
Replace radio and CD player and then go to
step 4.
Step 4. Retest the system.
Confirm that the radio and CD player operation
screen is displayed normally.
Q: Is the check result satisfactory?
YES :
The procedure is complete. (If no
malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunctions
).
NO :
Replace centre display and then go to step
5.