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Fiat
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2022
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500X Pop
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Repair and Diagnosis
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Engine Performance
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1.3L - DTCS P2C34 To U0404
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Diagnosis And Testing
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U0109-Lost Communication With Fuel Pump Control Module
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Set Condition
Set Condition
The Powertrain Control Module (PCM) does not receive a Pulse Width Modulated (PWM) signal from the Fuel Pump Control Module (FPCM).