CARWATCH
Code B2123
Passenger Side Satellite Communication Circuit Short to Ground
What does code B2123 mean?
The B2123 error is a DTC code that appears when the engine control module identifies this problem: "Passenger Side Satellite Communication Circuit Short to Ground".
Although it is a universal OBD2 code applicable to almost all modern cars (since 1996), how to fix it depends heavily on the brand. Repairing this fault is not the same on an Audi as it is on a Honda.
🛠️ Need to diagnose and clear the check engine light?
If you want to clear the code and turn off the dashboard warning light on your own, you will need to use a wireless OBD2 adapter.
🛒 View Recommended OBD2 Scanner on AmazonWant to know if this fault is dangerous for your specific car?
Avoid expensive unnecessary repairs. The CarWatch AI Mechanic cross-references this error's data with your brand's history to give you a precise diagnosis and tell you if it's safe to keep driving.
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