Code Definition

B1942 — Airbag Crash Sensor #2 Feed/Return Circuit Open

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

About B1942

B1942 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 B1942 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit; and a sensor-related fault — the reported value from the named sensor is out of spec.

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.

B1942 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 remote front impact sensors (commonly referred to as crash sensors) mounted near the front bumper or fender to detect collision events and confirm that a deployment event has occurred. DTC B1942 is set when the RCM detects an open circuit on the feed or return side of crash sensor number 2, which on most applications is the front right impact sensor. The most common causes are accident damage that has severed the sensor wiring, corrosion at the sensor connector behind the front bumper or fender, and a faulty sensor. When this code is active the airbag w...

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