FixVault

DTC 01-DF Master Error: Description

WARNING: This page is about a different car, the 2009 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
01-DF* The device with a display fails and the master is switched to the audio device. Also when a communication error between the sub-master (audio) and master occurs, this code is stored.
  • Radio receiver power source circuit
  • AVC-LAN circuit between the radio receiver assembly and the component which has stored this code
  • Radio receiver assembly
  • Component which has stored this code
HINT:
  • *: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the ignition switch ACC or ON, this code is stored.
  • Before starting troubleshooting, be sure to clear DTCs to clear codes stored due to the reasons described in Hint above. Then, check for DTCs and troubleshoot according to the output DTCs.
  • The radio receiver assembly is the master unit.
  • Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.