VR30DDTT engine

Throttle Valve Closed Position Learning is a function of ECM to learn the fully closed position of the throttle valve by monitoring the throttle position sensor output signal. It must be performed each time harness connector of electric throttle control actuator or ECM is disconnected or electric throttle control actuator is cleaned.

1. START 

   With CONSULT

   1. Turn ignition switch ON.
   2. Select "CLSD THL POS LEARN" in "WORK SUPPORT" mode.
   3. Follow the instructions on the CONSULT display.
   4. Turn ignition switch OFF and wait at least 10 seconds.
   5. Check that throttle valve moves during the above 10 seconds by confirming the operating sound.

   Without CONSULT

   1. Start the engine.
      NOTE: Coolant temperature is less than 25 deg. C (77 deg. F) before engine starts.
   2. Warm up the engine until engine coolant temperature reaches more than 65 deg. C (149 deg. F).
   3. Turn ignition switch OFF and wait at least 10 seconds.
   4. Check that throttle valve moves during the above 10 seconds by confirming the operating sound.

   END