B1601

PATS Received Incorrect Key Code

Body Code · High

What does B1601 mean?

The passive anti-theft system received an incorrect key code — vehicle will not start.

System: Immobilizer

B1601 is a body diagnostic trouble code indicating pats received incorrect key code. This code is classified as high severity, which means: address soon — may cause further damage.

Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.