Posts Tagged: U2107

U2107 code — What it means and how to fix the problem

Learn what a U2107 code means and how to fix the problem Because the 2nd position is a “2” it’s a manufacturer-specific code. GM defines a U2107 as Lost Communications with Body Control System. In other words, the engine control module (ECM) can no longer communicate digitally with the body control module (BCM). This is most likely the result of a problem with the data line between the two or a failure of a module on the data bus that’s injecting voltage onto the bus. Possible causes of a U2107 … Read More