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 DETECTION CONDITION CHART

DTC Code	DTC Detection Condition	Trouble Area
01-D51, 3	When either condition below is met Component shown by sub-code is (was) disconnected from system when turning power switch ON (ACC or IG) Communication condition with device that code shows cannot be obtained when hybrid system starts	Power source circuit of component shown by sub-code AVC-LAN circuit between multi-display and component shown by sub-code Component shown by sub-code
01-D82, 3	Component shown by sub-code is (was) disconnected from system after hybrid system starts
01-D91, 3	Device that had functioned before hybrid system stopped is (was) disconnected from system when power switch is (was) ON (IG or ACC)
01-DA*3	When either condition below is met No response is identified when changing modes Sound and image do not change by switch operation
01-DB1, 3	Dual alarm is detected
01-DE*3	Slave device has been disconnected after hybrid system starts
HINT 1: Even if no fault is present, this trouble code may be stored depending on the battery condition or hybrid system start voltage. 2: If the power connector is disconnected after the hybrid system 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

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.