Code Definition

B1709 — Seat Driver Front Up Switch Circuit Failure

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

About B1709

B1709 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 B1709 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.

B1709 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

This code relates to the driver's power seat adjustment system. The Body Control Module (BCM) or Driver Door Module monitors the driver's front up switch, which the driver uses to raise the front portion of the seat cushion (also called front tilt or front edge lift). DTC B1709 is set when the module detects an electrical fault in the switch circuit, such as continuous activation, an open circuit, or a signal that falls outside the expected voltage range. The front up function of the driver's seat may become inoperative, and depending on the vehicle, other power seat motors may also be disable...

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