This stands for "Body," indicating the issue is not with the engine or transmission (Powertrain) but with internal cabin systems like airbags, lighting, or electronic accessories.
) but the mirror isn't heating, the mirror heating element is faulty .
Use a plastic pry tool to gently pop the mirror glass away from its motorized motor housing. Unplug the two wires attached to the back of the glass. Set your multimeter to Ohms ( Ωcap omega
Use a scanner (like FORScan) to see if other codes, such as (Lost Communication with Door Control Module D), are present. If U0202 exists, the issue is likely a power/ground problem at the door module. 2. Inspect the Mirror Wiring and Connector ford b166a60
To fix the B166A:60 code, follow these steps in order of ease and probability. 1. Check for Other DTCs
This article provides a comprehensive overview of what this code means, common causes, symptoms, and how to troubleshoot it, based on Ford diagnostic reports and automotive repair procedures . What Does Ford B166A:60 Mean?
PDM (Passenger Door Module / Passenger Door Control Unit). Description: Heated Mirror Circuit Open. This stands for "Body," indicating the issue is
Since B166A-60 signifies an open circuit, the power isn't reaching the heating element. The likely culprits include:
If the wiring appears intact and the fuses are good, the problem may be within the door control module itself. Diagnostics for complex body control issues can sometimes require specialized equipment to scan the DDM/PDM directly.
An "open circuit" means the path required for electrical current to travel from the door module through the mirror heating filament and back to the chassis ground has been interrupted. The most common real-world reasons for this include: Unplug the two wires attached to the back of the glass
| Fix | DIY | Shop / Dealer | |-----|-----|----------------| | Connector cleaning / reseat | $0 | $100–150 diag | | OCS calibration (scan tool) | $0 (FORScan) | $120–200 | | OCS sensor mat replacement | $150–250 (part) | $500–900 | | Complete seat cushion + OCS | $400–600 | $1,200–1,800 |
A diagnostic scanner might show that a specific module (like the APIM or GPSM) is not responding.
When diagnostic software like FORScan reads this code, it usually points directly to either the Driver Door Module (DDM) or the Passenger Door Module (PDM). While this fault will not trigger the Check Engine light on your dashboard, it means your side mirror glass will not heat up to clear frost, ice, or fog. Anatomy of Code B166A:60
Ford B166A:60 is a diagnostic trouble code (DTC) that indicates an open circuit in the heated mirror system
Turn off the vehicle. Pull back the protective rubber accordion boot located between the frame of the car and the front edge of the door. Inspect the bundled wires closely for any split insulation or completely severed copper strands. If you locate a broken wire, splice it back together using a marine-grade heat-shrink butt connector to shield it from future moisture. Clearing the Code