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Home › Fiat › 2021 › 500X Trekking Plus › Repair and Diagnosis › Engine Performance › System › 1.3L - DTCS P0121 To P02EE › DTC Troubleshooting › P0121-Throttle Position Sensor 1 Performance › When Monitored

When Monitored

This diagnostic runs when the following conditions are met:

With the engine running.
P2135 DTC is active.