Ford B166a60 - |verified|

Dealer recalibration is sometimes required after any OCS repair — factor that into DIY plans.

This specific code defines the issue as a failure in the heated mirror circuit. ford b166a60

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. Dealer recalibration is sometimes required after any OCS

Here’s a helpful write‑up for the fault code. ford b166a60