PONTIAC G6 NO CRANK NO START, U0100, ECM PROBLEM

Make sure your battery is adequately charged!!

Disclaimer: this video is strictly to show how to check your ECM/PCM positive battery voltage and ground. The pinout diagrams provided in the description can help you better diagnose different components of the car. DO NOT assume that just because you have a U0100 code, you have a bad computer. There are many components connected to the car computer that can fail and cause no crank no start, shorts, bad grounds, corroded wires, frayed wires, and faulty system modulas including (BCM, TCM and many more ) can also cause a loss of communication. Diagnosing such issues is best done by an experienced mechanic who has access to wiring diagrams and advanced bidirectional scan tools.

Probe light-https://www.amazon.com/Automotive-Circuit-...
FORUM with ECM/PCM pinout diagram- https://www.2carpros.com/questions/wiring-...
Link for eBay ECM- https://www.ebay.com/itm/203881218615?mkci...

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