Complete duramax glow plug wiring diagram - But it tries to . I have checked each minor fuse underneath fuse field in every region . I used to be wondering about a relay or realy connection. Appears unlikely as accurate of shape as all of the wires and connectors have been in . I took harness off and wiped clean all contacts and inspected wires the yellow at the floor became on the bottom of the carpet from going in and out of the truck probable. The cord was strolling to the rear of the vehicle beneath sill plate rail. I test it after each smooth up and inspection of the wires. I test the test again and ensure i check and spot if i have a shift indicator light . To tell me if some thing is working i have cleared the codes and my truck beeps and it never eliminates the code. P0677 glow plug no. 7 control circuit malfunction feasible causessetting conditionsglow plug 7 connector is damaged (take a look at pins for harm, and for moisture)glow plug 7 manipulate circuit is open, shorted to floor or has excessive resistanceglow plug 7 has failedglow plug controller has faileddtc u0073 and u0106 isn't always set; key on or engine going for walks and the glow plug controller detected an surprising low voltage circumstance in the glow plug 7 control circuit. The glow plug controller has the potential to perform internal assessments, an open or a short to ground on each of the glow plug circuits. If the glow plug controller senses a hassle in a glow plug circuit, the glow plug at the affected cylinder can be disabled and the glow plug controller will ship an blunders message to the ecm. This code sets in 2 trip(s). This code will activate the mil (malfunction indicator lamp). I didnt get my truck fixed i wiped clean all connections as well went through the diagrams you emailed determined one broken twine on floorboard out of splice percent yellow didnt have any have an effect on solving the twine i still have the identical symptons and do now not know what to do?.
The opposite one looks like this. It's without a doubt a worse photo, as it best shows you the three spots wherein the wires hook up, it doesn't show a image of the harness or routing at all. You replaced the proper glowplug then the next step is to check wiring among plug and controller then replace cord/smooth connector as wished. If everthing tests out good update controller, here is a diagram.