Code Definition

B1772 — Seat Driver Backward Circuit Short To Ground

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

About B1772

B1772 is a manufacturer-specific body diagnostic trouble code recorded for Ford vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1772 is stored, the module has detected 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.

B1772 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 Driver Seat Module (DSM), or Body Control Module on simpler systems, drives the driver seat backward output through a smart driver or H bridge to the horizontal slide motor. DTC B1772 is set when the module detects an unintended path to ground on this output line, meaning the wire is being pulled low by an unintended ground connection even when the module is commanding the output high. The module reads this as excessive current draw or as a stuck low signal and stores the code to protect the driver stage. When this code is active, the driver seat may not slide rearward in response to the s...

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