Source-backed diagnostic reference

P1627 EV diagnostic code

A/D Performance

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

  • BUICK: A/D Performance Source
  • CADILLAC: A/D Performance Source
  • CHEVY: A/D Performance Source
  • GM: A/D Performance Source
  • GMC: A/D Performance Source
  • MAZDA: Powertrain Control Module ECM TCS Line Communication Error Source
  • OLDSMOBILE: A/D Performance Source
  • OTHER: Module Supply Voltage Out Of Range Source
  • SATURN: A/D Performance Source
  • VOLKSWAGEN: Data Bus Powertrain Missing Message From Fuel Injection Pump Source

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