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

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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.