2012 GM Truck No Communication With ABS Module

Name: 2017 GM 2500HD Reductant System Problems P20E8 @PhillipBailey
Uploaded: 2025-02-03T01:29:31-0400
Duration: 8 min 17 s
Description: This 2017 GMC 2500HD L5P had a P20E8 for low Reductant System pressure. I found that the system was empty. Then two professional scan tools would not command the pump to run properly. I had to use GDS2 to test it properly. It may have been frozen.