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Home >> Toyota >> 2017 >> Sienna LE, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Wireless Door Lock Control System (W/O Smart Key System) - Diagnostic Codes & Symptom Tests >> WIRELESS DOOR LOCK CONTROL SYSTEM(w/o Smart Key System) >> Symptom Tests >> Only Wireless Control Function is Inoperative [12/2015 - ] >> Description
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Only Wireless Control Function is Inoperative [12/2015 - ]: Description

The door control receiver receives signals from the transmitter and sends these signals to the main body ECU. The main body ECU then controls all doors by sending lock/unlock signals to each door, and sends hazard flasher relay signals to the turn signal flasher relay (hazard warning lights).