EV Diagnostics
Source-backed diagnostic reference

P1402 EV diagnostic code

Heated Catalyst Power Switch Overtemperature Condition Bank 1

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 Power Switch Overtemperature Condition Bank 1 Source
  • FORD: EGR Metering Orifice Restricted Source
  • KIA: EGR Control Solenoid Circuit Signal High Source
  • LINCOLN: EGR Metering Orifice Restricted Source
  • MAZDA: EGR Valve Position Sensor Circuit Source
  • MERCURY: EGR Metering Orifice Restricted Source
  • NISSAN: EGR System Source
  • OTHER: EGR Metering Orifice Restricted Source
  • SUBARU: Fuel Level Pressure Sensor Circuit Fault Source
  • VOLKSWAGEN: EGR Valve Circuit Short To B+ Source

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