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Cadillac
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2007
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STS Base, 3.6 7, AWD
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Repair and Diagnosis
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Body & Frame
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Door Locks
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Keyless Entry System And Remote Functions
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Diagnostic Information and Procedures
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DTC B3121
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DTC Descriptor
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Notes
DTC Descriptor: Notes
This diagnostic procedure supports the following DTC:
DTC B3121 Keyless Entry Antenna 3 Performance
DTC B3121
DTC Symptom
DTC Symptom Descriptor
02
Short to Ground
05
Short to Battery or Open