EV Diagnostics
Source-backed diagnostic reference

P1462 EV diagnostic code

Heated Catalyst Internal Control Module Checksum ROM Error

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

  • BMW: Heated Catalyst Internal Control Module Checksum ROM Error Source
  • FORD: Air Conditioning Pressure Sensor Circuit High Input Source
  • LINCOLN: Air Conditioning Pressure Sensor Circuit High Input Source
  • MERCURY: Air Conditioning Pressure Sensor Circuit High Input Source
  • OTHER: A/C pressure sensor circuit voltage high Source
  • VOLKSWAGEN: Exhaust Gas Temperature Control Bank 2 Range Performance Source

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