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DTC 01-D5, 01-D8, 01-D9, 01-DA, 01-DB, 01-DE: Absence of Registration Unit; No Response for Connection Check; Last Mode Error; No Response Against ON/OFF Command; Mode Status Error; Slave Reset: Description

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION TABLE

DTC No. DTC Detection Condition Trouble Area
01-D5
*1, *3
  • A component shown by the sub-code is (was) disconnected from the system when turning the ignition switch to the ON or ACC position.
  • The communication condition with the device that the code shows cannot be obtained when the engine starts.
  • Power source circuit of the component shown by the sub-code
  • AVC-LAN circuit between the multi-display and the component shown by the sub-code
  • Component shown by the sub-code
01-D8
*2, *3		 A component shown by the sub-code is (was) disconnected from the system after engine start.
01-D9
*1, *3		 The device that had functioned before the engine stopped is (was) disconnected from the system when the ignition switch is (was) in the ON or ACC position.
01-DA
*3
  • No response is identified when changing mode.
  • Sound and image do not change by switch operation.
01-DB
*1, *3		 A dual alarm is detected.
01-DE
*3, *4		 A slave device has been disconnected after engine start.
HINT:
  • *1: Even if no fault is present, this trouble code may be stored depending on the battery condition or engine start voltage.
  • *2: If the power connector is disconnected/after the engine starts, this code is stored after 180 seconds.
  • *3: If it is reported that the device does not exist during verification, check the power source circuit and AVC-LAN circuit for the device.
  • *4: This code may be stored if the engine is started and then the ignition switch is turned to the START position again.
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 DTCs after the inspection is completed to confirm that no DTCs are output.
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