EV Diagnostics
Source-backed diagnostic reference

P1374 EV diagnostic code

3X Reference 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: 3X Reference Circuit Source
  • CADILLAC: 3X Reference Circuit Source
  • CHEVY: 3X Reference Circuit Source
  • CHRYSLER: 3X Reference Circuit Source
  • GM: 3X Reference Circuit Source
  • GMC: 3X Reference Circuit Source
  • JAGUAR: Ignition Coil Cylinder 4 Early Activation Fault Source
  • OLDSMOBILE: 3X Reference Circuit Source
  • OTHER: Crankshaft Position (CKP)/Ignition Coil - Cylinder 4 - Early Activation Fault Source
  • SATURN: 3X Reference Circuit Source
  • VOLKSWAGEN: Cylinder 7 Ignition Circuit Short To B+ Source

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