Code Definition

B11D4 — Low Speed Collision Mitigation by Braking Disabled

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

About B11D4

B11D4 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 B11D4 is stored, the module has detected a signal or supply voltage lower than the expected operating range.

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.

B11D4 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 Ford Collision Mitigation by Braking (CMB) system uses a forward facing radar sensor and camera, typically mounted in the grille and behind the windscreen, to detect vehicles, pedestrians, and cyclists in the vehicle's path at low speeds (typically below 50 km/h). The Driver Assistance Module or Restraints Control Module (RCM), depending on vehicle platform, evaluates sensor data and is authorised to apply the brakes autonomously if a collision appears imminent and the driver has not reacted in time. DTC B11D4 is set when the controlling module determines that the low speed collision mitig...

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