| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000010Z5K |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: SEAT: REAR POWER SEAT CONTROL 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Rear Power Seat Control System
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
No functions operate. |
Power source circuit |
|
|
Fold seat control ECU |
- |
|
|
The folding-down function does not operate. |
Park/Neutral position switch circuit |
|
|
Back door courtesy switch circuit |
|
|
|
Lock switch circuit |
|
|
|
Reclining motor circuit |
|
|
|
Fold seat switch circuit |
|
|
|
Folding motor circuit |
|
|
|
No. 2 seat cushion frame sub-assembly (folding motor) |
- |
|
|
Fold seat control ECU |
- |
|
|
The return function does not operate. |
Park/Neutral position switch circuit |
|
|
Back door courtesy switch circuit |
|
|
|
Reclining motor circuit |
|
|
|
Folding motor circuit |
|
|
|
Fold seat switch circuit |
|
|
|
Release actuator circuit |
|
|
|
No. 2 seat cushion frame sub-assembly (folding motor) |
- |
|
|
No. 2 seat cushion frame sub-assembly (release actuator) |
- |
|
|
Fold seat control ECU |
- |
|
|
The stowing function does not operate. |
Park/Neutral position switch circuit |
|
|
Back door courtesy switch circuit |
|
|
|
Reclining motor circuit |
|
|
|
Folding motor circuit |
|
|
|
Fold seat switch circuit |
|
|
|
Fold lock switch circuit |
|
|
|
No. 2 seat cushion frame sub-assembly (folding motor) |
- |
|
|
Fold seat control ECU |
- |
|
|
The reclining function does not operate. |
Lock switch circuit |
|
|
Reclining motor circuit |
|
|
|
Rear power seat switch circuit |
|
|
|
Fold seat control ECU |
- |
|
|
The indicator does not come on or blink. |
Indicator circuit |
|
|
Fold seat control ECU |
- |
![2016 - 2020 MY Sienna [12/2015 - ]; SEAT: REAR POWER SEAT CONTROL SYSTEM: Power Source Circuit](/t3Portal/stylegraphics/info.gif)
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