Code Definition

B1718 — Seat Driver Forward Switch Circuit Open

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

About B1718

B1718 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 B1718 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.

B1718 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 Body Control Module (BCM) or Driver Seat Module (DSM) monitors the driver seat forward adjustment switch input circuit and sets code B1718 when an open circuit condition is detected on the switch signal line. Unlike the more general circuit failure code, an open circuit fault specifically indicates the module is seeing no electrical continuity between the switch and the module input pin, which can result from a broken wire, disconnected connector, or internally open switch contacts. The driver seat forward switch is a normally open momentary contact device mounted on the seat side trim tha...

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