Code Definition

B1651 — Seat Driver Recline Backward Circuit Failure

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

About B1651

B1651 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 B1651 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.

B1651 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 B1651 fault code indicates a circuit failure in the driver seat recline backward control circuit, monitored by the Driver Seat Module (DSM) or Body Control Module (BCM). This circuit drives the electric motor that tilts the seat backrest rearward when the driver operates the recline switch on power adjustable seats. The seat module energises the recline backward output and monitors current draw and feedback voltage to verify the circuit is healthy, setting B1651 when it detects a generic out of range condition such as an open circuit, short to power, short to ground, or excessive load on t...

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