OBD Codes List

Diagnostic reference · P0A1E

P0A1E

Starter/Generator Control Module

System
Powertrain control (P code)
Lamp
Check Engine Light
Category
Powertrain - Hybrid Propulsion

What it means

P0A1E means Starter/Generator Control Module.

Where it lives

For P0A1E, the part to look at first is the module named here.

Check these first

  • A starter/generator control module that has failed
  • Corrosion at the module connections
  • Short or open in the module wiring
  • A failed starter or generator
  • Low battery voltage

What to do next

  1. Read starter/generator control module data on a scan tool
  2. Check the battery voltage
  3. Inspect the module connections
  4. Test the module wiring for short or open
  5. Replace the module if it does not communicate
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.