FixVault
Home
›
Buick
›
2011
›
LaCrosse CXS
›
Repair and Diagnosis
›
Body & Frame
›
Door Locks
›
Keyless Entry System And Remote Functions
›
Diagnostic Information and Procedures
›
DTC B3121
›
Circuit/System Verification
Circuit/System Verification
Verify DTC B3122, B3123, or B3124 is not set.
If any of the DTCs are set, refer to
Diagnostic Trouble Code (DTC) List - Vehicle
.