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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 345 (ENGINE CONTROL SYSTEM - DIAGNOSIS)DATA LIST/ACTIVE TEST
2004 Toyota Celica GT, Standard

Data List/Active Test

2004 Toyota Celica GT, StandardSECTION Data List/Active Test
WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
  1. DATA LIST 

    HINT: Using the hand-held tester DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to shorten labor time.

    NOTE: In the figure Fig 1 below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
    1. Warm up the engine.
    2. Turn the ignition switch to OFF.
    3. Connect the hand-held tester or the OBD II scan tool to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn ON the hand-held tester.
    6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
    7. According to the display on tester, read the DATA LIST.
      Fig 1: SFI System Data List Chart (1 Of 4)
      G01437815Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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:

  • • 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.