If the difference between real and target throttle position is abnormal, the PCM sets DTC P0638.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Throttle response check | 1. Throttle stuck 2. Open in motor circuit 3. Faulty motor 4. Faulty PCM |
Enable Conditions |
•
IG On
•
Battery voltage is higher than 8V | |
Threshold Value |
•
When the difference between actual and target throttle position is higher than limit value after ETC motor drives. | |
Diagnostic Time |
•
0.5 sec | |
MIL On Condition |
•
5 sec |
