Inspection Procedure 1: No Navigation Screen is Displayed: Notes
CAUTION:
Before replacing the audio visual navigation unit, ensure that the power supply circuit, the ground circuit, and the communication circuit are normal. (Check that the voltage is 10 V or more.)
CAUTION:
When the ignition switch is turned to the ACC position for 30 minutes with the ETACS-ECU function, the ACC power is cut-off automatically. For this function, the time to cut-off can be changed with ETACS system by the scan tool MB991958 or the MMCS operation. (Refer to
ON-VEHICLE SERVICE
<ETACS> or
<MMCS>)