EV Diagnostics
Source-backed diagnostic reference

P1850 EV diagnostic code

Brake Band Apply Solenoid Circuit

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: Brake Band Apply Solenoid Circuit Source
  • CADILLAC: Brake Band Apply Solenoid Circuit Source
  • CHEVY: Brake Band Apply Solenoid Circuit Source
  • FORD: Transmission Transfer Case Contact Plate B Circuit Failure Source
  • GM: Brake Band Apply Solenoid Circuit Source
  • GMC: Brake Band Apply Solenoid Circuit Source
  • LINCOLN: Transmission Transfer Case Contact Plate B Circuit Failure Source
  • MERCURY: Transmission Transfer Case Contact Plate B Circuit Failure Source
  • OLDSMOBILE: Brake Band Apply Solenoid Circuit Source
  • OTHER: Transmission Transfer Case Contact Plate 'B' Circuit Failure Source
  • SATURN: Brake Band Apply Solenoid Circuit Source
  • VOLKSWAGEN: CAN Bus Missing Message From Engine Control Source

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