I am getting a code p0674. I believe this to be the glow plug control unit. Can anybody tell me where this is located and if it is an easy fix or replacement.

thanks,

Using the DTC code tool in a sticky post at the beginning says an issue on glow plug #4. I would check glow plug #4 first to see if good. If glow plug is good then I say glow plug module issue. may be fixable with some reprogramming but no idea on LBZ setup.

Brian

Its on the back drivers side on the engine. You need to test the wiring harness too if the glow plug is ok before replacing the module.