Source-backed diagnostic reference

P1806 EV diagnostic code

Transmission 4-Wheel Drive High Indicator Short Circuit To Battery

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

  • FORD: Transmission 4-Wheel Drive High Indicator Short Circuit To Battery Source
  • LINCOLN: Transmission 4-Wheel Drive High Indicator Short Circuit To Battery Source
  • MERCURY: Transmission 4-Wheel Drive High Indicator Short Circuit To Battery Source
  • OTHER: Transmission 4-Wheel Drive High Indicator Short Circuit To Battery Source

Search and canonical URL

Capitalization, underscores, hyphens, colons and spaces are normalized to this canonical code identity so alternate scan-tool formats do not create duplicate pages.