Ford B166a60 [top] -

: Corroded or loose pins in the door harness connector or behind the mirror glass. Blown Fuse

, often meaning a "signal comparison failure" or an open circuit where the computer expects a connection. Common Causes & Fixes If you are seeing this code on a scan tool like , here is what is usually happening: Broken Heating Element ford b166a60

: Short circuits, frayed wires, or poor grounding on the trailer itself are the most frequent culprits. : Corroded or loose pins in the door

The code may appear as a "permanent" or "commanded" DTC (CMDTC) during a scan with tools like or a professional diagnostic tablet. The code may appear as a "permanent" or

This code is triggered when the Door Control Module (DCM) or the Body Control Module (BCM) detects that the folding mirror motor is not responding correctly to commands. This usually happens because: The circuit is broken (open wire). The motor inside the mirror assembly has failed. The mirror is physically obstructed or jammed.