EV Diagnostics
Source-backed diagnostic reference

P1391 EV diagnostic code

Wheel Speed Sensor 1, G-Sensor Circuit 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: Wheel Speed Sensor 1, G-Sensor Circuit Performance Source
  • CADILLAC: Wheel Speed Sensor 1, G-Sensor Circuit Performance Source
  • CHEVY: Wheel Speed Sensor 1, G-Sensor Circuit Performance Source
  • CHRYSLER: Wheel Speed Sensor 1, G-Sensor Circuit Performance Source
  • DODGE: Intermittent Loss of CMP Or CKP Source
  • FORD: Glow Plug Circuit Low Input Bank 1 Source
  • GM: Wheel Speed Sensor 1 G-Sensor Circuit Performance Source
  • GMC: Wheel Speed Sensor 1 G-Sensor Circuit Performance Source
  • JEEP: Intermittent Loss of CMP Or CKP Source
  • LINCOLN: Glow Plug Circuit Low Input Bank 1 Source
  • MERCURY: Glow Plug Circuit Low Input Bank 1 Source
  • MITSUBISHI: Intermittent Loss Of CMP Or CKP Sensor Signals Source
  • OLDSMOBILE: Wheel Speed Sensor 1 G-Sensor Circuit Performance Source
  • OTHER: Glow Plug Circuit Low Input (Bank #1) Source
  • PLYMOUTH: Intermittent Loss of CMP Or CKP Source
  • PONTIAC: Intermittent Loss of CMP Or CKP Source
  • SATURN: Wheel Speed Sensor 1 G-Sensor Circuit Performance Source
  • VOLKSWAGEN: CMP Sensor Bank 2 Short To Ground Source
  • GENERIC: Glow Plug Circuit Low Input (Bank #1) Source

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