P1623 — Fiat: Immobilizer code words /ED number write failed

Code breakdown

Manufacturer-specific meanings (Fiat)

• Fiat
  Immobilizer code words /ED number write failed
• BuickCadillacChevroletGMGMCOldsmobileSaturn
  Transmission Temp Pull-Up Resistor
• BMW
  Pedal Position Sensor Potentiometer Supply
• Mazda
  Immobilizer System Fault
• Volkswagen
  Data Bus Powertrain No Communication

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

Owner experiences (0)