EV Diagnostics
Source-backed diagnostic reference

P1749 EV diagnostic code

Secondary Pressure Solenoid Communication Error

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

  • BMW: Secondary Pressure Solenoid Communication Error Source
  • FORD: Electronic Pressure Control Solenoid Failed Low Source
  • LINCOLN: Electronic Pressure Control Solenoid Failed Low Source
  • MAZDA: Electronic Pressure Control Solenoid Circuit Low Source
  • MERCURY: Electronic Pressure Control Solenoid Failed Low Source
  • OTHER: Pressure Control Solenoid Failed Low Source
  • VOLKSWAGEN: Transmission Control Unit Incorrect Coding Source

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