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DTC 01-DD Master Reset; DTC 01-E1 Voice Processing Device ON Error: Description

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
DTC TROUBLE DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
01-DD The device that should be the master has been disconnected after the engine starts.
  • Multi-display power source circuit
  • AVC-LAN circuit between the multi-display and the component which has stored this code
  • Multi-display
  • Component which has stored this code
01-E1 *1 The AMP device records that the AMP output does not function even while the source device is operating.
HINT:
*1: Even if no fault is present, this trouble code may be stored depending on the battery condition or engine start voltage.
NOTE:
  • Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.
  • The multi-display is the master unit.
  • Be sure to clear and recheck for DTCs after the inspection is completed to confirm that no DTCs are output.