P1641 — GMC: FC Relay 1 Control Circuit

Code breakdown

Manufacturer-specific meanings (GMC)

• Fiat
  Circuito primario pompa carburante
• BuickCadillacChevroletGMGMCOldsmobileSaturn
  FC Relay 1 Control Circuit
• FordLincolnMercury
  Fuel Pump Primary Circuit Failure
• Jaguar
  Fuel Pump Primary Circuit
• Volkswagen
  Check DTC Memory Of Air Condition ECU

Related codes

• P1600 — Manufacturer-specific fault code
• P1600-buick — PCM Battery
• P1600-cadillac — PCM Battery
• P1600-chevrolet — PCM Battery
• P1600-fiat — Perdita di potenza KAM, interruzione
• P1600-ford — Loss of KAM Power Open Circuit

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