2002 Toyota PriusFACTORY OEM SERVICE PROCEDURE

Component Tests: Notes

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 .

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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