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Diagnostic Fault Information

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Keyless Entry Antenna Signal - Rear Fascia B3121 02 B3121 05 B3121 05 -
Keyless Entry Antenna Low Reference - Rear Fascia B3121 02 B3121 05 B3121 05 -
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