Diagnostic Aids

1998 Chevrolet Tracker 2D Utility, RWD, AutomaticSECTION Diagnostic Aids

Diagnosing DTCs in correct order is important. Failure to diagnose DTCs in order specified may result in extended diagnostic time, incorrect diagnosis and incorrect part replacement.

NOTE: Following step references refer to test step numbers on diagnostic chart. See Figure and Figure . For circuit number and wire color identification, see WIRING DIAGRAMSΒ  .
RENDER: 1.0x

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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.