OBD Guide

P0A1E

Starter/Generator Control Module

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Problems starting the engine
  • Check Engine Light Is On
  • Generator power reduction
  • Unstable operation of the start-stop system
  • Low battery

Causes

  • Starter/Generator Control Module Malfunction
  • Problems with wiring or connectors
  • Malfunction of the starter or generator itself
  • Module power problems
  • Software errors in the control module

How to Fix

  1. Check the condition of the electrical wiring and connectors
  2. Check power supply and grounding of the module
  3. Test the operation of the starter and generator
  4. Update module software
  5. Replace the control module if necessary

Related codes

Error P0A1E by Vehicle Brand