I have a 2005 jeep cherokee 2.8CDR (125000 km) showing a (glow plug control curcuit low) fault code on all 4 glow plug (P1261,P1263, P1265, P1267).There is no dificulty starting and other wise it running fine, I'm woundering if there is a fault in the glow plug controller rather than a fault in all the glow plugs . Has anyone come across this before .

 

Glow plugs only help with starting so I would have to think it would be the controller if it's all of your glow plugs reading a fault