Code Definition

B1758 — Seat Driver Rear Down Circuit Open

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

About B1758

B1758 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 B1758 is stored, the module has detected an open (broken or disconnected) electrical path 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.

B1758 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 rear vertical down output, which lowers the rear of the driver seat cushion when the rear down direction is selected. DTC B1758 is set when the module detects an open circuit on this output, meaning the smart driver sees no current draw or no continuity to the seat motor when the rear down direction is commanded. The output drives one terminal of a reversible permanent magnet seat motor, so an unplugged motor connector, broken seat track harness, or motor with internal open windings will register as...

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