Trouble Shooting: Notes

1999 Mazda 626 ES, 2.5 D, StandardSECTION Notes

Always perform DIAGNOSIS & TESTINGΒ  and check for Diagnostic Trouble Codes (DTCs) before performing TROUBLE SHOOTING procedures. Before attempting to diagnose vehicle, ensure ABS warning light is functioning properly. ABS warning light will not illuminate and ABS will not operate if battery voltage is insufficient. Perform trouble shooting procedures on ABS warning light to eliminate unnecessary repairs and/or component replacement.

NOTE: For connector views referred to in trouble shooting, component and diagnostic tests, see Figure and Figure
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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.