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A103

A103 - Communication failed

Makita · Tool Management System

What does A103 mean?

There was a problem establishing communication. This might be related to the battery.

Common Causes

  • Battery has no remaining capacity
  • Battery is not properly connected

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Charge the battery.

  2. 2

    Ensure the battery is correctly and securely installed in the connector.

  3. 3

    Remove and re-install the battery.

Browse all codes in this manual (6)
Verified technical data. Last updated: April 2026

Related Faults

A102A102 - Could not communicateA104A104 - Abnormal connection detectedA105A105 - App not authenticated
Source: Makita Tool Management System
Open Manual (Page 30)Search more codes in this manual