P0638

DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK1)

1. OUTLINE OF DIAGNOSIS
Judge as NG when the target opening angle and actual opening angle is mismatched or the current to motor is the specified duty or more for specified time continuously.

2. COMPONENT DESCRIPTION






3. ENABLE CONDITION






4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously when the electronic throttle control is operating.

5. DIAGNOSTIC METHOD

Abnormality Judgement
Judge as NG when the following conditions are established.






Time Needed for Diagnosis:
- Difference between target opening angle and actual opening angle: 1000 milliseconds (when target opening angle > actual opening angle) or value of Map 2 (when target opening angle < actual opening angle)
- Output duty to drive circuit: value of Map 3 Map2









Normality Judgement
Judge as OK and clear the NG if the following conditions are established.






Time Needed for Diagnosis:
- Difference between target opening angle and actual opening angle: 2000 ms
- Output duty to drive circuit: 2000 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.