DTC Descriptor
DTC B3109: Keyless Entry Transmitter Low BatteryDiagnostic Fault Information
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
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
Connector End View Reference
Keyless Entry Connector End Views
Electrical Information Reference
Scan Tool Reference
Circuit/System Verification
Operate the keyless entry system with all available keyless entry transmitters. Verify DTC B3109 does not set with any of the transmitters.
| ⇒ | If DTC B3109 is set as current, replace the battery in the applicable keyless entry transmitter. Operate the applicable transmitter 3 consecutive times. If the DTC resets, replace the applicable keyless entry transmitter. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
