Code Definition

B1232 — Antenna Disconnected

System: Body  |  Type: Manufacturer-Specific  |  Make: Mazda

About B1232

B1232 is a manufacturer-specific body diagnostic trouble code recorded for Mazda vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

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.

B1232 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Mazda audio control module monitors the vehicle's radio antenna circuit for continuity and signal integrity. DTC B1232 sets when the module detects that the antenna has become disconnected or the feed cable shows an open circuit between the antenna base and the head unit. On vehicles equipped with a powered or amplified antenna system, the detection may also include loss of the antenna amplifier supply voltage or a failed sense line. When this code is present, the driver typically notices weak or completely absent AM and FM reception, and on some models the audio system may fall back to in...

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