Code Definition

B1C15 — Passenger’s Up/Down Mirror Motor Feedback Circuit

System: Body  |  Type: Manufacturer-Specific  |  Make: Land Rover

About B1C15

B1C15 is a manufacturer-specific body diagnostic trouble code recorded for Land Rover vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1C15 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.

B1C15 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 Door Control Module (DCM) on this Land Rover drives the passenger side exterior mirror up and down motor in both directions and reads a feedback signal from a potentiometer built into the mirror glass carrier to confirm the actual tilt position. The feedback line normally sits within a 5V pull up reference range, with the voltage sweeping up or down as the mirror glass moves to its new position, and the DCM uses this reading to stop the motor at the commanded position and to support mirror memory and fold functions. DTC B1C15 is stored when the DCM detects an out of range voltage on the fe...

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

Quick Facts