DTC 01-DF Master Error: Description

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No.	DTC Detection Condition	Trouble Area
01-DF *1	The device with a display fails and the master is switched to the audio device Also when a communication error between sub-master (audio) and master occurs, this code is stored	Radio receiver power source circuit AVC-LAN circuit between the radio receiver and the component which has stored this code Radio receiver Component which has stored this code
HINT: *1: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the engine switch on (ACC or IG), this code is stored.

NOTE:

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