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Home >> Toyota >> 2020 >> 4Runner TRD Pro >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Wireless Door Lock Control System (W/ Smart Key System) - Diagnostics - Introduction >> WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Key System) >> Problem Symptoms Table [08/2015 - 08/2019] >> Problem Symptoms Table [08/2015 - 08/2019]
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Problem Symptoms Table [08/2015 - 08/2019]

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WIRELESS DOOR LOCK CONTROL SYSTEM

Symptom Suspected Area Refer To
Wireless control function and entry function do not operate Proceed to "All Door Entry Lock / Unlock Functions and Wireless Functions do not Operate" Refer to All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate [08/2015 - 08/2019]
Wireless control function does not operate but entry function operates Replace door control transmitter -
Only answer-back function does not operate Proceed to "No Answer-Back" Refer to No Answer-Back [08/2015 - 08/2019]
Only automatic lock function does not operate Proceed to "Door Courtesy Switch Circuit" Refer to Door Courtesy Switch Circuit [08/2015 - 08/2019]
Proceed to "Back Door Courtesy Switch Circuit" Refer to Back Door Courtesy Switch Circuit [08/2015 - ]
Main body ECU Refer to TERMINALS OF ECU [08/2015 - 08/2019] 
Only illuminated entry function does not operate Lighting system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
Only door ajar warning function does not operate Proceed to "Door Courtesy Switch Circuit" Refer to Door Courtesy Switch Circuit [08/2015 - 08/2019]
Proceed to "Back Door Courtesy Switch Circuit" Refer to Back Door Courtesy Switch Circuit [08/2015 - ]
Main body ECU Refer to TERMINALS OF ECU [08/2015 - 08/2019] 
Only panic alarm function does not operate Theft deterrent system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019]