DTC Detection Logic
WARNING: This page is about a different car, the 2020 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.
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DTC No.
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CONSULT screen terms
(Trouble diagnosis content)
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DTC detecting condition
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P1220
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FPCM/CIRCUIT
(Fuel pump control module circuit)
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During engine cranking, the signal voltage of the FPCM to the ECM is too low.
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