Technical Description (Comment)

CAUTION: If the ignition switch is turned to the ON position without starting the engine, DTC (past trouble) 11, 12 and 14 may be set to the multi-center display after three minutes.

Current trouble

Connector(s) or wiring harness in the CAN bus lines between the A/C-ECU and the multi-center display, the power supply system to the display unit, the multi-center display itself, or the A/C-ECU may be defective.

Past trouble

Carry out diagnosis with particular emphasis on connector(s) or wiring harness in the CAN bus lines between the A/C-ECU and the multi-center display, and the power supply system to the A/C-ECU. For diagnosis procedures, refer to "How to cope with past trouble" (Refer to HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS ).

NOTE: For a past trouble, you may not find it by the M.U.T.-III CAN bus diagnostics even if there is any failure in CAN bus lines. In this case, refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION .) and check the CAN bus lines. You can narrow down the possible cause of the trouble by referring to the DTC, which is set regarding the CAN communication-linked ECUs (Refer to CAN BUS LINE DIAGNOSTICS FLOW ).