OBD Codes List

Diagnostic reference · P2E1A

P2E1A

Drive Motor A Inverter Voltage Sensor A/B Correlation

System
Powertrain control (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P2E1A stands for Drive Motor A Inverter Voltage Sensor A/B Correlation. P2E1A is a P code, so the fault sits in the engine, transmission and emissions systems. For P2E1A, work through the cause list below, cheapest checks first.

Where it lives

For P2E1A, start at the sensor the description names.

What to check first

For P2E1A, clear the code, drive a short distance and read it again, since a code that comes back is still there and one that does not was history.

Check these first

  • P2E1A: Faulty or contaminated sensor in the fuel/air metering circuit
  • P2E1A: Damaged or shorted wiring or connector for the affected circuit
  • P2E1A: Vacuum leak or intake system restriction
  • P2E1A: Failing fuel pump, injector, or fuel pressure regulator

What to do next

P2E1A belongs to the powertrain control system. These are the general steps for P2E1A, and the exact cause on your vehicle can differ.

  1. P2E1A: Read freeze frame data and related codes with an OBD-II scanner
  2. P2E1A: Inspect the affected sensor wiring and connector for damage
  3. P2E1A: Compare live sensor readings (fuel trim, airflow, temperatures) to manufacturer specs
  4. P2E1A: Smoke test the intake system if lean or vacuum conditions are suspected
  5. P2E1A: Replace the failed component after confirming it with live data

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Updated

Generic SAE J2012 definition. Last updated 2026-08-30.