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Home >> Lexus >> 2012 >> IS 350 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio Entertainment System (W/O Navigation & Multi-Display) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/o Navigation System without Multi-display) >> DTC 01-D5: Absence of Registration Unit; DTC 01-D8: No Response for Connection Check; DTC 01-D9: Last Mode Error; DTC 01-DA: No Response Against ON / OFF Command; DTC 01-DB: Mode Status Error; DTC 01-DE: Slave Reset >> Description
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DTC 01-D5: Absence of Registration Unit; DTC 01-D8: No Response for Connection Check; DTC 01-D9: Last Mode Error; DTC 01-DA: No Response Against ON / OFF Command; DTC 01-DB: Mode Status Error; DTC 01-DE: Slave Reset: Description

DTC No. DTC Detection Condition Trouble Area
01-D5
*1, *3
A device indicated by the sub-code is (was) disconnected from the system with the engine switch on (IG) or (ACC).
The communication condition with the device that the DTC shows cannot be obtained when the engine starts.
  • Power source circuit of the component shown by the sub-code
  • AVC-LAN circuit between the radio receiver assembly and component shown by the sub-code
  • Component shown by the sub-code
01-D8
*2, *3
The device indicated by the sub-code is (was) disconnected from the system after the engine starts.
01-D9
*1, *3
The device that had functioned before the engine stopped is (was) disconnected from the system with the engine switch on (IG) or (ACC).
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
A slave device has been disconnected after the engine starts.

HINT: 

NOTE:
  • Before starting troubleshooting, be sure to clear the 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 assembly is the master unit.
  • Be sure to clear and recheck for the DTCs after the inspection is completed to confirm that no DTCs are output.