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 B3109: Keyless Entry Transmitter 1 Low BatteryCircuit/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 body control module (BCM) 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
Electrical Information Reference
Scan Tool Reference
Circuit/System Verification
Verify DTC B 3109 is not set:
| ⇒ | If the DTC is set, replace the battery in the applicable keyless entry transmitter. Operate the applicable transmitter 3 consecutive times. If any DTCs reset, replace the applicable keyless entry transmitter. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
