Activation Inspection Mode (Without Using A Hand-Held Tester)

2004 Toyota Celica GT, StandardSECTION Activation Inspection Mode (Without Using A Hand-Held Tester)
WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the following steps Β 2 through Β 6 within 60 seconds.
  2. Turn the ignition switch ON from OFF.
  3. With the shift lever in P position, fully depress the accelerator pedal 2 times.
  4. With the shift lever in N position, fully depress the accelerator pedal 2 times.
  5. With the shift lever in P position, fully depress the accelerator pedal 2 times.
  6. Activate the inspecting mode and check that the hybrid system error warning light on the multi-center display flashes.
  7. Turning the ignition switch to START starts the engine's continuous operation.
NOTE:
  • The idling speed in the inspection mode is Approximately 1,000 RPM. The number of revolutions will increase up to 1,500 RPM if the accelerator pedal is depressed to a degree of less than 60%, and up to 2,250 RPM in a case of 60% or more.
  • If a diagnosis code is recorded when entering the inspection mode, the master warning light and the error warning light on the multi-center display is lit.
  • When the master warning light is lit during operation in the inspection mode, deactivate the inspection mode and inspect the diagnosed area.
  • When continuous operation of the engine is required such as for an exhaust leakage inspection, it is advisable as an easier way to turn ON the FULL switch of the air conditioner.
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:

  • 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.