If the deviation between the throttle position by TPS2 signal and the throttle position by ECM's model value is bigger than the threshold value under TPS1 error, the ECM sets DTC P0221.
Item | Detecting Condition | Possible Cause | |
Case 1 | DTC Strategy |
•
Rationality check between TPS1 and TPS2. | 1. Poor connection 2. TPS 3. ECM 4. Obstruction in the throttle plate movement 5. Throttle body |
Enable Conditions |
•
Engine Speed > 320 rpm | ||
Threshold Value |
•
| TPS1 position - TPS2 position | > 6.3 %~12.2 % | ||
Diagnostic Time |
•
0.14 sec | ||
Case 2 | DTC Strategy |
•
If different, check between TPS2 and Model TPS | |
Enable Conditions |
•
Engine Speed > 320 rpm | ||
Threshold Value |
•
I TPS2 position - Model TPS l (if TPS1 error) > 9% | ||
Diagnostic Time |
•
0.2 sec | ||
MIL ON Condition |
•
1 Driving cycle | ||
