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Home › Dodge and Ram › 2021 › ProMaster 1500 › Repair and Diagnosis › Engine Performance › System › 3.6L - DTCS P000A To P0138 › 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.