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Message: <blockquote data-quote="Kevman6" data-source="post: 116425" data-attributes="member: 20682"><p>Our 2016 T870 bobcat Ser# ASTW12057 has a SCR fault warning of U005435-12 (general pressure check fault) which also has triggered a tampering fault. I cannot find any reference as to where a pressure sensor is or check would take place. We recently had to replace the pretreatment temperature sensor which had failed. We also opened the DEF tank and drained it and added fresh DEF fluid. We also put in a new DEF tank cap and filler neck. After putting in the new temp sensor, it's code went away and so did the tampering code. Then shortly after, the new code for "General pressure check fault" came on, along with the tampering fault. Any help would be greatly appreciated. I find no info on where to check to resolve this problem.</p></blockquote><p></p>