2003 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Electrical Component Locator: Grounds

GROUNDS LOCATION

Component Component Location
BL Under driver's seat. See Figure.
BM Under passenger's seat.
BN At left quarterpanel. See Figure.
BO Near stereo component amplifier. See Figure.
BP At left quarterpanel. See Figure.
BQ At right quarterpanel. See Figure.
EA Rear of right fender. See Figure.
EB Right side of cylinder head. See Figure.
EC Left side of cylinder head. See Figure.
ED Rear of left fender. See Figure.
EE Rear of left fender. See Figure.
IF At left kick panel. See Figure.
IG Left side of steering column. See Figure.
IH Under steering column. See Figure.
II On left side dash brace. See Figure.
IJ On right side dash brace. See Figure.
IK At right kick panel. 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:

  • • 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.

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