FULLY-CLOSED THROTTLE POSITION LEARNING FUNCTION OPERATION [LF]

B3E014018881T12

Fully-closed throttle learning value (fully-closed throttle voltage value) update

• If the calculated average value for the fully-closed throttle falls below the current fully-closed throttle learning value, the PCM updates the calculated average value as a new value.

• When the throttle valve is considered to be fully-closed, the average fully-closed throttle value when all of the following conditions are met is calculated by averaging several sample values that are detected.

- No load (in neutral) with vehicle stopped

- If throttle valve opening angle has not changed

- Other than when in test mode

- Engine speed is less than 3,000 rpm.

Inhibition condition of fully-closed throttle learning

• If any of the following conditions are met, the PCM determines that there is a fully-closed throttle learning difficulty and substitutes a set value (fixed value) for the fully-closed throttle learning value.

- During Test mode

- Throttle position sensor damage (DTCs P0122, P0123 detected)

- Battery terminals reconnected

- If fully-closed throttle learning value exceeds the set upper limit value

- If fully-closed learning value decreases below set lower limit value.