EV Diagnostics
Source-backed diagnostic reference

P1812 EV diagnostic code

Transmission Over Temperature Condition

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: Transmission Over Temperature Condition Source
  • CADILLAC: Transmission Over Temperature Condition Source
  • CHEVY: Transmission Over Temperature Condition Source
  • FORD: Transmission 4-Wheel Drive Mode Select Circuit Failure Source
  • GM: Transmission Over Temperature Condition Source
  • GMC: Transmission Over Temperature Condition Source
  • LINCOLN: Transmission 4-Wheel Drive Mode Select Circuit Failure Source
  • MERCURY: Transmission 4-Wheel Drive Mode Select Circuit Failure Source
  • OLDSMOBILE: Transmission Over Temperature Condition Source
  • OTHER: Transmission 4-Wheel Drive Mode Select Circuit Failure Source
  • SATURN: Transmission Over Temperature Condition Source

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