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Fiat
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2021
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500X Pop
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Repair and Diagnosis
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Engine Performance
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System
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1.3L - DTCS P0121 To P02EE
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DTC Troubleshooting
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P025B-Fuel Pump Module Control Circuit Performance
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Default Action
Default Action
The MIL will illuminate.
The FPCM PWM Control circuit will be reduced to 0% PWM for a calibrated amount of time and then powered to 50%. If the over temperature condition persists, the output will be shut down.