Code Definition

B1937 — Airbag Passenger Pressure Switch Circuit Open

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

About B1937

B1937 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 B1937 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.

B1937 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 Restraints Control Module (RCM) uses the passenger seat pressure switch to determine whether a passenger is occupying the front seat so it can decide whether to enable or suppress the passenger airbag during a deployment event. DTC B1937 is set when the RCM detects an open circuit between itself and the passenger seat pressure switch, meaning it cannot read a valid signal from the sensor. Common triggers include disconnected seat connectors after seat removal, broken or stretched wiring inside the seat track loom, and faulty pressure switches. When this code is active the airbag warning la...

Join TaT to view the complete code information and diagnostic details.

Quick Facts