OBD Guide
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P1A64

Starter/Generator Control Module Reset

P1A64 is an OBD-II diagnostic trouble code meaning: Starter/Generator Control Module Reset. Common causes: on-board power failures, problems with the module software. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Problems starting the engine
  • Battery charge indicator flashing
  • Irregular operation of the start-stop system
  • Reduced charging efficiency
  • Other related errors appear

Causes

  • On-board power failures
  • Problems with the module software
  • Short circuit in control circuit
  • Module wear or damage
  • Wiring harness fault

How to Fix

  1. Check the condition of the battery and mains voltage
  2. Inspect the wiring harness and module connectors
  3. Reset the module using diagnostic equipment
  4. If necessary, update the module software
  5. Check and, if necessary, replace the control module

Related codes

P1A63P1A65P0A80

FAQ

What does the P1A64 code mean?

P1A64 is an OBD-II diagnostic trouble code that indicates: Starter/Generator Control Module Reset

What causes a P1A64 error code?

The most common causes of P1A64 include: On-board power failures; Problems with the module software; Short circuit in control circuit; Module wear or damage.

How do I fix a P1A64 diagnostic trouble code?

To fix P1A64: Check the condition of the battery and mains voltage. Inspect the wiring harness and module connectors. Reset the module using diagnostic equipment. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1A64?

Limited driving only, diagnose soon

How much does it cost to fix P1A64?

The estimated repair cost for P1A64 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat