LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2018 >> Enclave Base >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Keyless Entry System And Remote Function System >> Diagnostic Information and Procedures >> DTC B3121 >> Circuit/System Description

Circuit/System Description

The rear fascia antenna is located in the rear fascia assembly and is used to establish low frequency communications with the keyless entry transmitter. As a vehicle with locked doors is approached with a keyless entry transmitter and the exterior rear closure touch pad is pressed, the keyless entry control module communicates with the rear fascia keyless entry antenna.