P0380 - 2004 Duramax

Question

Vehicle runs and starts fine, check engine light is on intermittently. California vehicle.
P0380 CKT A Malfunction, what should I do? I am reasonably mechanical but lack electrical experience.

Answer 1

Hi there,

This code indicates an issue with the glow plug. Here is some info for you.

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

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