EV Diagnostics
Source-backed diagnostic reference

P1651 EV diagnostic code

Fan 1 Relay Control 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: Fan 1 Relay Control Circuit Source
  • CADILLAC: Fan 1 Relay Control Circuit Source
  • CHEVY: Fan 1 Relay Control Circuit Source
  • FORD: Power Steering Pressure Switch Input Fault Source
  • GM: Fan 1 Relay Control Circuit Source
  • GMC: Fan 1 Relay Control Circuit Source
  • LINCOLN: Power Steering Pressure Switch Input Fault Source
  • MAZDA: Power Steering Pressure Switch Circuit Source
  • MERCURY: Power Steering Pressure Switch Input Fault Source
  • OLDSMOBILE: Fan 1 Relay Control Circuit Source
  • OTHER: PSP Switch Input Malfunction Source
  • SATURN: Fan 1 Relay Control Circuit Source
  • VOLKSWAGEN: Data Bus Powertrain Missing Messages Source

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