Understanding the electrical system
Glow plug control modules manage preheat on applicable engines. Confirm the controller and its connections along with the glow plugs themselves.
Match the Right Part to Your Equipment
Include engine year/model, module part number and available preheat circuit results.
Provide clear photos of the module case, label and connectors. Share engine and vehicle details, known trouble codes and whether power supply and harness faults have been checked.
Replacement and programming questions
Confirm controller variants and electrical configuration before purchasing a substitute.
Compare the original hardware number, programming requirements and engine application with the product details. If you’re unsure, send DCT the module label and we’ll help you review available options.
Part Names and Identification
These parts may be listed as GPCM diesel preheat control module, glow plug controller. Confirm the original module number and programming requirements for your engine.