They could... possibly... maybe... indicate four bad glow plugs, but they would never indicate one or two bad glow plugs. In short, the PCM can NOT measure the resistance of a glow plug, it never did and never will. So whoever told you it did was either lying to you or has no idea of how the glow plug system works.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.