| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VKHR |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM: DIAGNOSIS SYSTEM; 2016 - 2020 MY Sienna [12/2015 - ] | ||
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Lighting system data and the Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and to repair.
2. CHECK DLC3
(a) Check the DLC3 (See page
![2016 - 2020 MY Sienna [12/2015 - ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: GENERAL INFORMATION](/t3Portal/stylegraphics/info.gif)
).
3. INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
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