LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Keyless Entry System) >> Diagnostic Information and Procedures >> DTC B3109: 3 Consecutive Low Battery Signals From The Same Programmed Transmitter >> Test Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

The number(s) below refer to the step number(s) on the diagnostic table.

  1. 3. This step identifies the key fob # (transmitter) with a low battery signal.
  2. 4. This step verifies that the battery replacement corrected the fault.
    Fig 1: Identifying DTC B3109 Diagnostic Table
    G02422685Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals