| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VKES |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: WIPER / WASHER: WIPER AND WASHER SYSTEM(w/ Rain Sensor): PROBLEM SYMPTOMS TABLE; 2016 - 2020 MY Sienna [12/2015 - ] | ||
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of the problem symptom. 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.
Front Wiper and Washer
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Front wipers and washer do not operate |
WIP fuse |
- |
|
Windshield wiper relay assembly |
|
|
|
Harness or connector |
- |
|
|
Front wipers do not operate at all |
Power source circuit |
|
|
Front wiper motor circuit |
|
|
|
Windshield wiper relay assembly |
|
|
|
Front wipers do not operate in AUTO |
Rain sensor tape*1 |
- |
|
Wiper and washer switch circuit |
|
|
|
Rain sensor circuit |
|
|
|
Speed signal circuit |
|
|
|
Windshield wiper relay assembly |
|
|
|
Front wipers do not operate in LO |
Wiper and washer switch circuit |
|
|
Front wiper motor circuit |
|
|
|
Windshield wiper relay assembly |
|
|
|
Front wipers do not operate in HI |
Wiper and washer switch circuit |
|
|
Front wiper motor circuit |
|
|
|
Windshield wiper relay assembly |
|
|
|
Front washer motor does not operate |
Windshield washer motor and pump assembly |
|
|
Windshield wiper switch assembly |
|
|
|
Harness or connector |
- |
|
|
Washer fluid does not flow |
Washer hose and nozzle |
- |
|
Front wipers do not operate when front washer switch is ON |
Wiper and washer switch circuit |
|
|
Windshield wiper relay assembly |
|
|
|
When the front wiper switch is OFF, the wiper blades do not park or park in the wrong position |
Front wiper arm installation position |
- |
|
Windshield wiper motor assembly |
|
![2016 - 2020 MY Sienna [12/2015 - ]; WIPER / WASHER: WIPER ECU: REMOVAL](/t3Portal/stylegraphics/info.gif)
HINT:
*1: Before inspecting the rain sensor, first check if the rain sensor tape is correctly installed.
Rear Wiper and Washer
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Rear wiper and washer do not operate |
WASHER RR fuse |
- |
|
Windshield wiper switch assembly |
|
|
|
Harness or connector |
- |
|
|
Rear wiper does not operate in LO or HI |
Windshield wiper switch assembly |
|
|
Rear wiper motor assembly |
|
|
|
Harness or connector |
- |
|
|
Rear washer motor does not operate |
Windshield wiper switch assembly |
|
|
Rear washer motor assembly |
|
|
|
Harness or connector |
- |
|
|
Washer fluid does not flow |
Washer hose and nozzle |
- |
|
When the rear wiper switch is OFF, the wiper blade does not park or parks in the wrong position |
Rear wiper arm installation position |
- |
|
Rear wiper motor assembly |
|
Washer Fluid Level Warning System
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Washer fluid level warning system does not operate |
Washer fluid level warning switch |
|
|
Combination meter assembly |
|
|
|