Diagnostic Aids

1992 Saturn SL2 StandardSECTION Diagnostic Aids

Order in which diagnostic codes are diagnosed is very important. Failure to diagnose diagnostic codes in order specified may result in extended diagnostic time, incorrect diagnosis, and incorrect parts replacement.

Fig 1: SIR Diagnostic System Check
G92G21309Courtesy of GENERAL MOTORS
RENDER: 1.0x

NO RELATED

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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.