Toyota Sienna Service Manual: Absence of Registration Unit/ No Response for Connection Check/ Last Mode Error/ No Response Against ON / OFF Command/ Mode Status Error/ Slave Reset

DESCRIPTION

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 the device is reported as not existing during verification, check the power source circuit and AVCLAN circuit for the device.
•  *4: This code may be stored if the engine is started and the ignition switch is turned to the START position again.

NOTICE:

•  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 radio receiver is the master unit.
•  Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

INSPECTION PROCEDURE

NOTICE: Be sure to read DESCRIPTION before performing the following procedures

1 CHECK "RADIO RECEIVER COMMUNICATION ERROR" IN FLOW CHART

Refer to the radio receiver communication error

END