| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000YS0I |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: LIGHTING (INT): LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE; 2017 - 2020 MY Sienna [08/2016 - ] | ||
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.
Illuminated Entry System (w/ Overhead Console)
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Only transponder key amplifier does not illuminate*1 |
Transponder key amplifier |
|
|
Harness or connector |
- |
|
|
Only engine switch illumination does not illuminate*2 |
Engine switch illumination circuit |
|
|
Certification ECU (smart key ECU assembly) |
|
|
|
Only roof console box assembly does not illuminate |
Bulb |
- |
|
Harness or connector |
- |
|
|
Only No. 2 room light assembly does not illuminate*3 |
Bulb |
- |
|
Harness or connector |
- |
|
|
Only spot light assembly does not illuminate*4 |
Bulb |
- |
|
Harness or connector |
- |
|
|
Only ceiling light does not illuminate*4 |
Ceiling light |
|
|
Harness or connector |
- |
|
|
Illuminated entry system does not operate normally |
DOME fuse |
- |
|
DOME CUT relay |
- |
|
|
Door courtesy switch circuit |
|
|
|
Door unlock detection switch circuit |
|
|
|
IG signal circuit |
|
|
|
ACC signal circuit |
|
|
|
Interior light circuit |
|
|
|
Engine switch illumination circuit (w/ Smart Key System) |
|
|
|
Main body ECU |
|
![2016 - 2020 MY Sienna [12/2015 - ]; LIGHTING (INT): IGNITION KEY CYLINDER LIGHT: INSPECTION](/t3Portal/stylegraphics/info.gif)
- *1: w/o Smart Key System
- *2: w/ Smart Key System
- *3: w/o Rear Sliding Roof
- *4: w/ Rear Sliding Roof
Vanity Light
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Vanity light does not illuminate |
Visor assembly RH |
|
|
Visor assembly LH |
|
|
|
Harness or connector |
- |
Courtesy Light (w/ Courtesy Light)
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Courtesy light does not illuminate |
Bulb |
- |
|
Courtesy light assembly |
|
|
|
Front door courtesy light switch |
|
|
|
Harness or connector |
- |
|
|
Main body ECU |
|
Console Box Light (w/ Console Box)
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Console box light does not illuminate |
Console box illumination light assembly |
|
|
Roof console box assembly |
|
|
|
Harness or connector |
- |
Luggage Compartment Light
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Luggage compartment light does not illuminate |
Bulb |
- |
|
Rear room light assembly |
|
|
|
Back door lock assembly |
|
|
|
Roof console box assembly |
|
|
|
Harness or connector |
- |
|
|
Main body ECU |
|
Battery Saving Control
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Battery saving function does not operate. |
Door courtesy switch circuit |
|
|
Unlock warning switch circuit (w/o Smart Key System) |
|
|
|
IG signal circuit |
- |
|
|
Main body ECU |
|
|
|