| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000YS0M |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: LIGHTING (INT): LIGHTING SYSTEM: Engine Switch Illumination Circuit; 2017 - 2020 MY Sienna [08/2016 - ] | ||
|
Engine Switch Illumination Circuit |
DESCRIPTION
The illuminated entry system controls the engine switch illumination.
WIRING DIAGRAM
PROCEDURE
|
1. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(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 / Smart Key / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
Smart Key
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Power/Engine SW Light |
Engine switch illumination |
ON/OFF |
- |
OK:
Engine switch illumination comes on.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
|
2. |
INSPECT ENGINE SWITCH |
|
(a) Remove the engine switch. Click here
|
|
(b) Apply battery voltage to the terminals and check that the engine switch comes on.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 11 (SWIL) Battery negative (-) → Terminal 5 (GND) |
Engine switch illumination comes on |
(c) Reinstall the engine switch.
Click here
![2017 - 2020 MY Sienna [08/2016 - ]; 2GR-FKS STARTING: ENGINE SWITCH: INSTALLATION](/t3Portal/stylegraphics/info.gif)
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (ENGINE SWITCH - CERTIFICATION ECU AND BODY GROUND) |
(a) Disconnect the D33 engine switch connector.
(b) Disconnect the D88 certification ECU (smart key ECU assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D33-11 (SWIL) - D88-11 (SWIL) |
Always |
Below 1 Ω |
|
D33-5 (GND) - Body ground |
Always |
Below 1 Ω |
|
D33-11 (SWIL) - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the certification ECU (smart key ECU assembly) connector.
(e) Reconnect the engine switch connector.
| OK |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|