Component Tests: Notes

2004 Toyota Celica GT, StandardSECTION Notes
WARNING: This page is about a different car, the 2003 Toyota Prius, 2002 Toyota Prius, and 2001 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

Components are tested with related circuit. See DIAGNOSTIC TESTSΒ . ABS ECU values can be measured using Toyota hand-held tester and breakout box. ABS circuits and wiring harness can also be tested by backprobing ABS ECU connectors and comparing measured voltages with ABS ECU standard values chart. See ABS ECU PIN VOLTAGESΒ .

RENDER: 1.0x

NO RELATED

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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.