6 Codes Related to Glow Plug Circuit

VanPhilly

New member
When I scan my van it gives me 7 codes:
p0675 Cylinder 5 Glow Plug Circuit*
p0672 Cylinder 2 Glow Plug Circuit*
p0671 Cylinder 1 Glow Plug Circuit*
p0380 Glow Plug Circuit Perf
p0674 Cylinder 4 Glow Plug Circuit
p0673 Cylinder 3 Glow Plug Circuit*
p2506 ECM/PCM Power Input Signal Range/Perf_

The guy who I got it from said he replaced the glow plug module along with some other sensors when I purchased it. Drove it home and the next day got a CEL. When I scanned it, this is what I get. Does this mean he didn't clear the codes? Or is it a bad module? I'm assuming that all the GP circuits are going crazy because of the module, or were at some point to cause a trip of a code. How do I check to see if the glow plug module is bad?
 

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