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 IS 350FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Grounds
GROUNDS LOCATION
| Component | Location |
|---|---|
| A1 (2.5L) | Left rear of engine compartment. See Figure. |
| A1 (3.5L) | Left rear of engine compartment. See Figure. |
| A2 (2.5L) | Left rear of engine compartment. See Figure. |
| A2 (3.5L) | Left rear of engine compartment. See Figure. |
| A3 (2.5L) | Left rear of engine compartment. See Figure. |
| A3 (3.5L) | Left rear of engine compartment. See Figure. |
| A4 (2.5L) | Right rear of engine compartment. See Figure. |
| A4 (3.5L) | Right rear of engine compartment. See Figure. |
| A5 (2.5L) | Right rear of engine compartment. See Figure. |
| A5 (3.5L) | Right rear of engine compartment. See Figure. |
| B1 | Right front of engine compartment. See Figure. |
| B1 (3.5L) | Right front of engine compartment. See Figure. |
| B2 (2.5L) | Left front of engine compartment. See Figure. |
| B2 (3.5L) | Left front of engine compartment. See Figure. |
| C1 (2.5L) | Front of engine. See Figure. |
| C1 (3.5L) | Front of engine. See Figure. |
| E1 (2.5L) | Left rear of engine. See Figure. |
| E1 (3.5L) | Left rear of engine. See Figure. |
| E2 (2.5L) | Right rear of engine. See Figure. |
| E2 (3.5L) | Right rear of engine. See Figure. |
| H1 (2.5L) | Front of engine. See Figure. |
| H1 (3.5L) | Front of engine. See Figure. |
| I1 (2.5L) | Front of engine. See Figure. |
| I1 (3.5L) | Front of engine. See Figure. |
| J1 | Left kick panel. See Figure. |
| J2 | Under center console. See Figure. |
| J3 | In center console. See Figure. |
| J4 | Right kick panel. See Figure. |
| P1 | Right side of crossmember. See Figure. |
| P2 | Right rear of vehicle. See Figure. |
| P3 | Right side of trunk. See Figure. |
| Q1 | Near left "B" pillar. See Figure. |
| Q2 | Left side of trunk. See Figure. |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
