ECM/PCM sends DTC P0221 if the difference between the throttle valve position value calculated by TPS1and the designated value by ECM/PCM is over certain value when the TPS2 is abnormal.
Item | Detecting Condition | Possible Cause | |
Case 1 | DTC Strategy |
•
Rationality check between TPS1 and TPS2 | 1. Poor connection 2. TPS 3. ECM/PCM 4. Obstruction in the throttle plate movement 5. Throttle body |
Enable Conditions |
•
Engine Speed greater than 320 rpm | ||
Threshold Value |
•
Absolute value of difference of TPS1 position and TPS2 position greater than 6.3 %~12.2 % | ||
Diagnostic Time |
•
0.28 sec. | ||
Case 2 | DTC Strategy |
•
If different, check between TPS2 and Model TPS | |
Enable Conditions |
•
Engine Speed greater than 320 rpm | ||
Threshold Value |
•
Absolute value of difference of TPS2 position and Model TPS(if TPS1 error) greater than 9% | ||
Diagnostic Time |
•
0.28 sec. | ||
MIL ON Condition |
•
1 Driving cycle | ||
