GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC B3111: Keyless Entry Transmitter 3 or Generic Low Battery

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

Keyless Transmitter 3 Low Battery

--

--

--

B3111 00

Circuit/System Description

This fault sets if the key fob programmed to slot 3 has a low battery.

Conditions for Running the DTC

The remote function actuation (RFA) system must be enabled.

Conditions for Setting the DTC

The code sets after 3 consecutive low battery signals from the same programmed transmitter.

Action Taken When the DTC Sets

The RFA system is inoperative.

Conditions for Clearing the DTC

The code is cleared as current when a normal transmitter voltage signal is received from any programmed transmitter.

Reference Information

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Scan Tool Data List

Circuit/System Testing

  1. Replace the batteries in the transmitter and with the scan tool clear the DTC.
  2. Operate the transmitter 3 consecutive times.
  3. If the DTC sets again, test the battery.
  4. If all circuits test normal, test or replace the transmitter.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.