Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJH0
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): PROBLEM SYMPTOMS TABLE; 2016 - 2020 MY Sienna [12/2015 -        ]

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Wireless Door Lock Control System

Symptom

Suspected Area

See page

Wireless control function and entry function do not operate

Proceed to "All Door Entry Lock / Unlock Functions and Wireless Functions do not Operate"

2016 - 2020 MY Sienna [12/2015 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM(for Entry Function): All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate

Wireless control function does not operate but entry function operates

Replace electrical key transmitter

-

Only answer-back function does not operate normally

Proceed to "No-answer back"

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): No Answer-Back

Only automatic lock function does not operate normally

Perform operation check

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): OPERATION CHECK

Lighting system (door courtesy light switch circuit)

2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Door Courtesy Switch Circuit

Main body ECU

-

Only illuminated entry function does not operate

Perform operation check

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): OPERATION CHECK

Lighting system

2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (INT): LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Main body ECU

-

Only door ajar warning function does not operate

Perform operation check

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): OPERATION CHECK

Lighting system (door courtesy light switch circuit)

2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Door Courtesy Switch Circuit

Main body ECU

-

Only panic alarm function does not operate (w/ theft deterrent system)

Perform operation check

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): OPERATION CHECK

Lighting system (int) (interior lights)

2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (INT): LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Lighting system (ext) (headlights, taillights, hazard lights)

2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (EXT): LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Theft deterrent system (vehicle horn, security horn)

2016 - 2020 MY Sienna [12/2015 -        ]; THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Main body ECU

-