| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VKI7 |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM: Turn Signal Switch Circuit; 2016 - 2020 MY Sienna [12/2015 - ] | ||
|
Turn Signal Switch Circuit |
DESCRIPTION
The combination meter assembly receives the headlight dimmer switch assembly (turn signal switch) information and controls the turn signal lights.
WIRING DIAGRAM
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (TURN SIGNAL SWITCH (RIGHT) AND TURN SIGNAL SWITCH (LEFT)) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Combination Meter / Data List.
(e) According to the display on the Techstream, read the Data List.
Combination Meter
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Turn Signal Switch (Right) |
Turn signal switch (Right) signal/ON or OFF |
ON: Turn signal switch (Right) on OFF: Turn signal switch (Right) off |
- |
|
Turn Signal Switch (Left) |
Turn signal switch (Left) signal/ON or OFF |
ON: Turn signal switch (Left) on OFF: Turn signal switch (Left) off |
- |
OK:
Normal conditions listed above are displayed.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (See page
|
|
|
2. |
INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY (TURN SIGNAL SWITCH) |
(a) Remove the headlight dimmer switch assembly (See page
![2016 - 2020 MY Sienna [12/2015 - ]; LIGHTING (EXT): HEADLIGHT DIMMER SWITCH: REMOVAL](/t3Portal/stylegraphics/info.gif)
).
(b) Inspect the headlight dimmer switch assembly (See page
).
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (HEADLIGHT DIMMER SWITCHASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND) |
(a) Disconnect the D147 headlight dimmer switch assembly connector.
(b) Disconnect the D146 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D147-13 (TR) - D146-9 (ER) |
Always |
Below 1 Ω |
|
D147-15 (TL) - D146-10 (EL) |
Always |
Below 1 Ω |
|
D147-12 (ED) - Body ground |
Always |
Below 1 Ω |
|
D147-13 (TR) or D146-9 (ER) - Body ground |
Always |
10 kΩ or higher |
|
D147-15 (TL) or D146-10 (EL) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (See page
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|