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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Engine Controls - Self-Diagnostics - 2.2L) >> Powertrain Control Module >> Tooth Error Correction Learn Procedure >> Vehicle Preparation Requirements & Safety Issues
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Vehicle Preparation Requirements & Safety Issues

WARNING: This page is about a different car, the 2002 Isuzu Rodeo Sport and 2002 Isuzu Rodeo. However, it is still accessible from the selected car via links, so may be relevant.

Ensure that vehicle has sufficient engine oil, automatic transmission fluid, manual transmission gear box oil, power steering fluid, coolant, and brake fluid. Engine noise and exhaust should be considered when deciding the location to perform TEC learn procedure. Proper safety precautions should be taken. Anticipate unusual events such as a manual transmission accidentally being bumped into gear or a foot slipping off a clutch at high engine speed. The vehicle may cause other vehicles to be hit. If transmission is in Park during high engine speeds, transmission park ratchet experiences excessive vibration and may momentarily slip. Vehicle is typically in Neutral and may roll, especially if vehicle is on an incline. When performing TEC learn procedure ensure that transmission will not slip into gear. Following summarizes engine preparation requirements for a TEC learn procedure:

  1. Engine has been running 4 minutes or more, is required to have occurred at lest once during life of vehicle to insure that all oil passages are flushed of debris from machining, casting, and assembly.
  2. At least 5 seconds of engine run time is required during same key cycle as TEC learn procedure to fill oil passages and provide proper lubrication. 10 seconds or more is preferred.
  3. Engine coolant temperature is 148°F (65°C) or more. Engine oil temperature of 100°F (38°C) or more is required for lubrication. This is a recommendation to insure a sufficiently lubricated engine.
  4. Vehicle must be in Park or Neutral. For a manual transmission vehicle, clutch does not need to be depressed. TEC learn procedure may be performed with either:
    • Transmission in Neutral, it does not matter if the clutch is depressed or not.
    • Transmission in gear and clutch depressed.
    NOTE: The first option is the recommended option due to safety concerns. The second option has the risk of the operators foot slipping off of the clutch with the vehicle being revved up and in gear
  5. A/C should always be turned OFF before performing TEC learn procedure.
  6. A Class II command from the scan tool is required to invoke TEC learn procedure.
  7. No Camshaft and/or Crankshaft Sensor DTCs are set.

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