B3109

DTC B3109, B3110, B3111, or B3112

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.



DTC Descriptors
DTC B3109
- Keyless Entry Transmitter 1 Low Battery

DTC B3110
- Keyless Entry Transmitter 2 Low Battery

DTC B3111
- Keyless Entry Transmitter 3 Low Battery

DTC B3112
- Keyless Entry Transmitter 4 Low Battery




Circuit/System Description

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control door lock receiver (RCDLR) along with the commanded keyless entry function.


Conditions for Running the DTC

The keyless entry system must be enabled.


Conditions for Setting the DTC

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


Action Taken When the DTC Sets

The keyless entry system is inoperative.


Conditions for Clearing the DTC

The DTC is cleared when a normal transmitter voltage signal is received from any programmed transmitter.


Reference Information
Schematic Reference

Remote Function Schematics (Remote Function Schematics)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Keyless Entry System Description and Operation (Keyless Entry System Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information


Circuit/System Verification

Verify none of the following DTCs are set:

* DTC B3109
* DTC B3110
* DTC B3111
* DTC B3112


If any of the DTCs are set, replace the battery in the applicable keyless entry transmitter. Operate the applicable transmitter 3 consecutive times. If any of the DTCs reset, replace the applicable keyless entry transmitter.



Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.


Transmitter Programming (Programming and Relearning)