05 - Inspection Procedure

The Multi-Center Display does not Display the Information Concerning the Audio System Correctly.

Multi-Center Display Communication Circuit:

Connector:

CIRCUIT OPERATION
The multi-center display and the radio, tape player, CD player and CD auto changer communicate with each other. The multi-center display shows the information concerning the radio, tape player, CD player and CD auto changer on the screen, based on that communication.

TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty multi-center display communication circuit.

TROUBLESHOOTING HINTS
- Damaged harness wire or connector.
- Malfunction of the multi-center display.
- Malfunction of the radio, tape player, CD player and CD auto changer.

DIAGNOSIS

Required Special Tool:
- MB991223: Harness set

STEP 1. Check the time display function of the multi-center display.

Q: Does the time display function of the multi-center display operate normally?

YES: Go to Step 2.

NO: Replace the multi-center display.




STEP 2. Check multi-center display connector C-09 and radio, tape player, CD player and CD auto changer connector C-21 for damage.

Q: Are multi-center display connector C-09 and radio, tape player, CD player and CD auto changer connector C-21 in good condition?

YES: Go to Step 3.

NO: Repair or replace it. Refer to Harness Connector Inspection. The multi-center display should display the information concerning the audio system correctly.




STEP 3. Check the harness wires between multi-center display connector C-09 and radio, tape player, CD player and CD auto changer connector C-21.

Q: Are the harness wires between multi-center display connector C-09 and radio, tape player, CD player and CD auto changer connector C-21 in good condition?

YES: Repair or replace the multi-center display or radio, tape player, CD player and CD auto changer.

NO: Repair them. The multi-center display should display the information concerning the audio system correctly.