2002 Saturn L100FACTORY OEM SERVICE PROCEDURE

Window Defogger DTCS

WINDOW DEFOGGER DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description
DTC B0285 Open Or Short To Ground In The Rear Defog Relay Control Circuit
DTC B0286 Short To Battery Voltage In The Rear Defog Relay Control Circuit
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.

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