Code Definition

B2204 — GPS Antenna Connection Open or Short

System: Body  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About B2204

B2204 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B2204 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit; and a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

Because B2204 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The B2204 code indicates that the navigation or telematics module has detected an open or short condition on the GPS antenna circuit. The GPS antenna is a small active antenna, typically mounted on the roof, dash top, or under the rear parcel shelf, and it is fed a low voltage supply through the same coaxial cable that returns the satellite signal. The module monitors the current draw on this supply line, and sets the code when it sees either too little current, indicating an open or disconnected antenna, or too much current, indicating a short in the cable or the antenna itself. When this fau...

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