Code Definition

B1672 — Seat Driver Occupied Input Circuit Failure

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

About B1672

B1672 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1672 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

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.

B1672 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 Restraints Control Module (RCM), or Supplemental Restraint System (SRS) module, monitors a driver seat occupancy input to determine whether the driver seat is occupied. DTC B1672 is set when the RCM detects a failure on the driver seat occupied input circuit, which can be an open, a short to ground, or a short to power. The system uses this input alongside the seat belt switch to manage seat belt warning chimes, airbag deployment timing, and on some vehicles the passive restraint and pretensioner strategy. When this code is set, the airbag warning lamp is typically illuminated, seat belt w...

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