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.
2007 Lexus ES 350FACTORY OEM SERVICE PROCEDURE
Engine Switch Indicator Circuit: Description
Engine start conditions or system malfunctions can be checked by the status of the engine switch indicator light.
Engine switch indicator light condition:
POWER SOURCE MODE/CONDITION AND INDICATOR LIGHT CONDITION
| Power Source Mode/Condition | Indicator Light Condition | |
|---|---|---|
| Brake pedal released | Brake pedal depressed, shift lever in P or N | |
| off | OFF | ON (Green) (When key and vehicle IDs match) |
| on (ACC, IG) | ON (Amber) | ON (Green) |
| Engine running | OFF | OFF |
| Steering lock not unlocked | Flashes (Green) for 15 sec. | Flashes (Green) for 15 sec. |
| System malfunction | Flashes (Amber) for 15 sec. | Flashes (Amber) for 15 sec. |
Factory Service Tools
Use the Manual With the Right Hardware
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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.