Code Definition

B2162 — Data Mismatch #2 (receive data does not match what was expected)

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

About B2162

B2162 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.

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 B2162 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

DTC B2162 sets when a body system module receives a data message over the vehicle communication network and the received data does not match the expected value, format, or checksum. The receiving module performs validation checks on incoming network messages, including data range checks, checksum verification, and rolling counter validation. This is the second variant in a series of data mismatch codes used by the body or restraint system to flag corrupted or unexpected message content from a partnering module. When this code is set, certain body functions that depend on the affected data may ...

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