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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 108 (ENGINE CONTROL SYSTEM SELF DIAGNOSTICS)SELF-DIAGNOSTIC SYSTEMACTIVE TEST
2004 Toyota Celica GT, Standard

Active Test

2004 Toyota Celica GT, StandardSECTION Active Test
WARNING: This page is about a different car, the 2003 Toyota Matrix and 2003 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Performing ACTIVE TEST using hand-held tester allows relay, vacuum switching valve (VSV), actuator and so on to operate without parts removal. Performing ACTIVE TEST as a first step of trouble shooting is one of method to shorten labor time. It is possible to display DATA LIST during ACTIVE TEST.
  1. Warm up engine and turn ignition switch OFF.
  2. Connect OBD II scan tool or hand-held tester to DLC3. See Figure.
  3. Turn ignition switch ON. According to display on tester, perform ACTIVE TEST.
    • For Corolla and Matrix (1ZZ-FE engine) models, see Fig 1.
    • For Matrix (2ZZ-GE engine) model, see Fig 2.
Fig 1: Identifying ACTIVE TEST (Corolla & Matrix 1ZZ-FE Engine)
G00241541Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.