Code Definition

B1705 — Seat Driver Recline Rearward Switch Circuit Failure

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

About B1705

B1705 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 B1705 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.

B1705 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 monitors the driver seat recline rearward switch input as part of the power seat adjustment system. DTC B1705 sets when the module detects an electrical fault on the recline rearward switch circuit, such as an open circuit, a short to power, or a short to ground that prevents the module from interpreting the switch state correctly. The recline rearward switch is a momentary contact within the master seat switch pack that signals the seat module to drive the recline motor in the direction that lowers the seat back. When this code is set, the d...

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