1999 Saturn SW1 AutomaticFACTORY OEM SERVICE PROCEDURE

Powertrain Control Module (Pcm): Installation

Lower PCM into bracket while guiding attachment stud into slot in cross-car beam. Tighten PCM mounting nut to 89 INCH lbs. (10 N.m). To complete installation, reverse removal procedure. Program replacement PCM using appropriate equipment and latest software. See COMPUTER RELEARN PROCEDURES .

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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