2002 GMC Duramax 2500HD 6.6 LB7,calif truck

Question

the engine check light comes on after I replace the glow plug heater module, I got it new from GMC dealer. Now what could it be?

Thanks
Greg

Answer 1

Hi there,

Other possible causes for this code could be faulty wiring or an issue with the computer. Here is some more info.

P0380 GMC - Glow Plug/Heater Circuit 'A' Malfunction

Read more: https://www.autocodes.com/p0380_gmc.html