2020 Subaru Forester P code Page 155

Time Needed for Diagnosis:

1. 600 ms

2. 830 ms

3. 200 ms

4. 200 ms

5. 24 ms

6. 250 ms

7. 200 ms

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

P0638

DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)

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

Judge as OK and clear the NG when the malfunction criteria below are met.