ECM sends DTC P0121 if the difference between the throttle valve position value calculated by TPS1and the designated value by ECM is over certain value when the TPS2 is abnormal.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Plausibility check between | 1. Poor connection 2. TPS 3. ECM |
Enable Conditions |
•
IG "ON" | |
Threshold Value |
•
| TPS1 position - TPS2 position | > 6.3% | |
Diagnostic Time |
•
0.14sec | |
MIL ON Condition |
•
5 sec |
