EV Diagnostics
Source-backed diagnostic reference

P1400 EV diagnostic code

Heated Catalyst Battery Voltage or Current Too Low During Heating 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 Battery Voltage or Current Too Low During Heating Bank 1 Source
  • FORD: Differential Pressure Feedback Electronic Sensor Circuit Low Voltage Source
  • JAGUAR: Exhaust Gas Recirculation Valve Postion Control Source
  • LEXUS: Sub-TP Sensor Malfunction Source
  • LINCOLN: Differential Pressure Feedback Electronic Sensor Circuit Low Voltage Source
  • MAZDA: DPFE Sensor Circuit Low Input Source
  • MERCURY: Differential Pressure Feedback Electronic Sensor Circuit Low Voltage Source
  • MITSUBISHI: Manifold Differential Pressure Sensor Circuit Source
  • NISSAN: EGRC Solenoid Valve Source
  • OTHER: DPFE Circuit Low Input Source
  • SUBARU: Fuel Tank Pressure Control Solenoid Low Input Source
  • TOYOTA: Sub-Throttle Position Sensor Source
  • VOLKSWAGEN: EGR Valve Circuit Electrical Malfunction Source

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