DTC 01-DF Master Error: Description

DTC TROUBLE DETECTION CONDITION CHART

DTC Code	DTC Detection Condition	Trouble Area
01-DF*	When either condition below is met: The device with a display fails and the master is switched to the audio device. A communication error between the sub-master (radio receiver) and master occurs.	Display and navigation assembly power source circuit AVC-LAN circuit between display and navigation module display and component which has stored this code AVC-LAN circuit between display and navigation module display and radio receiver Display and navigation module display Component which has stored this code
HINT: *: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the engine switch on (ACC) or on (IG), this code is stored.

NOTE:

Before starting troubleshooting, be sure to clear DTCs to clear codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.
The display and navigation module display is the master unit.
Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.