LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Buick
>>
2012
>>
Regal Base
>>
Repair and Diagnosis
>>
Body & Frame
>>
Door Locks
>>
Keyless Entry System And Remote Functions
>>
Diagnostic Information and Procedures
>>
DTC B3120
>>
DTC Descriptors
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
DTC Descriptors
DTC B3120 02
Keyless Entry Antenna 2 Short to Ground
DTC B3120 05
Keyless Entry Antenna 2 High Voltage/Open