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A102

A102 - Could not communicate

Makita · Tool Management System

What does A102 mean?

The tool or battery cannot communicate with the connector. Data cannot be read or written correctly.

Common Causes

  • Temporary communication issue
  • Battery is low or depleted
  • Incorrectly seated tool or battery

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Wait a moment and try again.

  2. 2

    Check if the battery has enough charge and charge it if needed.

  3. 3

    Remove the tool and battery from the connector, then re-install them.

  4. 4

    If the problem continues, try a different battery.

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

Related Faults

A103A103 - Communication failedA104A104 - Abnormal connection detectedA105A105 - App not authenticated
Source: Makita Tool Management System
Open Manual (Page 30)Search more codes in this manual