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Home >> Toyota >> 2017 >> 4Runner TRD Pro >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Wireless Door Lock Control System (W/O Smart Key System) - Diagnostics - Introduction >> WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System) >> Problem Symptoms Table [08/2019 - 08/2022] >> Problem Symptoms Table [08/2019 - 08/2022]
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Problem Symptoms Table [08/2019 - 08/2022]

HINT: 

WIRELESS DOOR LOCK CONTROL SYSTEM

Symptom Suspected Area Refer To
Only wireless control function is inoperative Proceed to "Only wireless control function is inoperative" Refer to Only Wireless Control Function is Inoperative [08/2019 - 08/2022]
Only answer-back function does not operate normally Proceed to "No answer-back" Refer to No Answer-Back [08/2019 - 08/2022]
Only automatic lock function does not operate normally Perform the operation check Refer to OPERATION CHECK [08/2019 - 08/2022] 
Key reminder warning system Refer to OPERATION CHECK [08/2015 - 08/2022]
Lighting system (door courtesy light switch circuit) Refer to Door Courtesy Switch Circuit [08/2019 - ]
Main body ECU (multiplex network body ECU) -
Only illuminated entry function does not operate Perform the operation check Refer to OPERATION CHECK [08/2019 - 08/2022] 
Lighting system Refer to OPERATION CHECK [08/2019 - 08/2022]
Main body ECU (multiplex network body ECU) -
Only door ajar warning function does not operate Perform the operation check Refer to OPERATION CHECK [08/2019 - 08/2022] 
Lighting system (door courtesy light switch circuit) Refer to Door Courtesy Switch Circuit [08/2019 - ]
Main body ECU (multiplex network body ECU) -
Only panic alarm function does not operate Perform operation check Refer to OPERATION CHECK [08/2019 - 08/2022] 
Lighting system (int) (interior lights) Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
Lighting system (ext) (headlights, taillights, hazard lights) Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
Theft deterrent system (vehicle horn) Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
Main body ECU (multiplex network body ECU) -