Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2009SIENNA XLE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINTERIOR/ILLUMINATION LIGHTSLIGHTING SYSTEM
2009 Toyota Sienna XLE, FWD
Lighting System
2009 Toyota Sienna XLE, FWDSECTION Lighting System
- Lighting System
- Precaution
- Parts Location
- How To Proceed With Troubleshooting
- Operation Check
- Customize Parameters
- Problem Symptoms Table
- Terminals Of Ecu
- DTC Check / Clear
- Data List / Active Test
- Diagnostic Trouble Code Chart
- DTC B1244 Light Sensor Circuit Malfunction
- Ignition Switch Circuit
- Headlight Relay Circuit
- DRL Relay Circuit
- Front Fog Light Circuit
- Light Control Switch Circuit
- Automatic Light Control Sensor Circuit
- Door Courtesy Switch Circuit
- Door LOCK Position Circuit
- Illumination Circuit
- Parking Brake Switch Circuit
- Taillight Relay Circuit
- Headlight Assembly
- Daytime Running Light Resister
- Fog Light Assembly
- Rear Combination Light Assembly
- Back-Up Light Assembly
- License Plate Light Assembly
- High Mounted Stop Light Assembly
- Personal Light Assembly
- Room Light Assembly
- DOOR COURTESY LIGHT (for Rear
- Ignition Key Cylinder Light
- Vanity Light
- Headlight Dimmer Switch
- Turn Signal Light Switch
- Hazard Warning Switch
- Headlight Leveling Switch
- Stop Light Switch
- Front Door Courtesy Switch
- Rear Door Courtesy Switch
- Back Door Courtesy Switch
- Light Control Relay
- Headlight Relay
- Daytime Running Light Relay
- Headlight Dimmer Relay
- Taillight Relay
- Fog Light Relay
- BRK Relay
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.