EV Diagnostics
Source-backed diagnostic reference

P1453 EV diagnostic code

Secondary Air Injection Pump Relay Control Circuit Electrical

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: Secondary Air Injection Pump Relay Control Circuit Electrical Source
  • JAGUAR: Fuel Tank Pressure Relief Valve Malfunction Source
  • OTHER: Fuel Tank Pressure Relief Valve Malfunction Source
  • VOLKSWAGEN: Exhaust Gas Temperature Sensor 1 Open Short To B+ Source

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