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Home >> Saturn >> 2007 >> Ion Red Line >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Keyless Entry System And Remote Functions >> Diagnostic Information and Procedures >> DTC B3109 >> Circuit/System Description

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 body control module (BCM) along with the commanded keyless entry function.