A check engine light might not appear, but a scanning tool will show the B166A:60 code in the DDM or PDM.
If the mirror glass passes the resistance test, the break is further down the vehicle's wiring. Set your multimeter to .
: The most common cause is a thin wire inside the mirror glass itself that has burned out or snapped. Wiring Issues
While Ford's airbag systems can use similar "B" codes, within the Passenger Door Control Unit (PDM). ford b166a60
In this comprehensive guide, we will dissect from every angle. You will learn what triggers this code, which Ford models are most susceptible, the exact symptoms to watch for, step-by-step diagnostic procedures, and the most cost-effective repair strategies.
The B166A:60 code is typically electrical, involving issues from the mirror glass itself back to the door module. The most common causes include:
: This indicates a fault specifically with the Passenger Heated Mirror Circuit . A check engine light might not appear, but
Often, the driver-side mirror will work, indicating the problem is isolated to the passenger door.
If the brake lights do not work at all, check the owner's manual for the or "Brake Lamp" fuse. If this fuse is blown, the signal cannot be sent, triggering the code.
: Ford is providing a free Over-the-Air (OTA) software update to resolve the communication error. 3. Pillar Post Covers : The most common cause is a thin
The affected side mirror will fail to clear frost, ice, fog, or condensation when the rear defroster is active.
of the module or the vehicle's electrical system to see if the code clears, though hardware faults will cause it to return immediately.