Manufacturer-specific fault code

Code breakdown

Manufacturer-specific meanings

• Fiat
  Interruttore di ritorno bloccaggio differenziale scatola di rinvio cambio cortocircuito verso positivo
• BuickCadillacChevroletGMGMCOldsmobileSaturn
  Torque Reduction Signal Circuit Desired By TCM
• Volkswagen
  Check DTC Memory Of Central Electronic Control ECU

Related codes

• P1800 — Manufacturer-specific fault code
• P1800-buick — TCM Power Control Relay Circuit Open
• P1800-cadillac — TCM Power Control Relay Circuit Open
• P1800-chevrolet — TCM Power Control Relay Circuit Open
• P1800-gm — TCM Power Control Relay Circuit Open
• P1800-gmc — TCM Power Control Relay Circuit Open

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