Inspection Procedure 6: The picture and sound of external input are not played.: Diagnosis
Required Special Tools:
- MB991223: Harness Set
- MB992006: Extra Fine Probe
- STEP 1. Check of rear display unit DVD picture.
Check that the DVD picture is displayed normally when the rear display unit DVD player is used.
Q: Is the check result normal?
YES: Go to Step 2.
NO: Perform the troubleshooting related to the rear display unit DVD video. Refer to TROUBLESHOOTING .
- STEP 2. Check rear display unit connector D-16 and audio and video adaptor connector C-117 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Is rear display unit connector D-16 and audio and video adaptor connector C-117 in good condition?
YES: Go to Step 3.
NO: Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION .
- STEP 3. Check the wiring harness between rear display unit connector D-16 (terminal 31, 33, 36, 37, 38) and audio and video adaptor connector C-117 (terminal 1, 6, 2, 5, 4). NOTE: Also check intermediate connector D-123 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-123 is damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION .
- Check the communication lines for open circuit.
Q: Is the wiring harness between rear display unit connector D-16 (terminal 31, 33, 36, 37, 38) and audio and video adaptor connector C-117 (terminal 1, 6, 2, 5, 4) in good condition?
YES: Replace the audio and video adapter, then go to Step 4.
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 4. Retest the system
Check that the external input is normal.
Q: Is the check result normal?
YES: The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
NO: Replace the rear display unit.