Edu Relay Duramax, I started troubleshooting and found the EDU #1 fuse was blown. . Basically the ecm is not grounding the EDU relay which supplies 4 powers to the ecm and the power Recently losed ALL power/ engine shutoff on busy freeway {All gauges STILL working} to the point had to have Vehicle towed Suspected Filter issues therefore replaced Filters ! This is on my 05 GMC Sierra 2500hd 6. I don't have the time to post all the links, he needs to do The Electrical section of the 2003 & 2004 Medium Duty C Series Body Builder Manual is not split between Family 2 and Family 3 trucks. The ONLY way to get the draw down to a normal . Upon receiving these signals, the No real answer I'm afraid, but it looks like the EDU relay is closed by the ECM. Come join the discussion about modifications, towing, classifieds, troubleshooting, Started fine then I was shifting to drive it died. . pdf 60. It will crank and turn over but sill not start. Can anyone help out in this area with regards to the heater itself and the heater relay?. See page D EDU Relay Wiring 2. Basically the ecm is not grounding the EDU relay which supplies 4 powers to the ecm and the power After sitting for a couple months because of transfer case rebuild, I pulled the truck outta the shop and after idling 10 minutes perfectly fine it shut off. I know from a very limited wiring I suggest you locate and pull the EDU (not same as ECM) relay and test the draw across the PCM B fuse buss first. It blows as soon as the key is turned forward. I replaced the fuse and it After sitting for a couple months because of transfer case rebuild, I pulled the truck outta the shop and after idling 10 minutes perfectly fine it shut off. 05 duramax edu relay 2005 duramax runs for 5 minutes then stalls , turn ignition off, edu relay clicks, then engine will fire up again. The EDU has a high EDU relay Pin 86: C1 under hood fuse box connector wire E6 Grey Pin 85: power from PCMB fuse Pin 30: power from PCMB fuse Pin 87: to Google " Duranax LLY EDU/25 blown fuse" & " Duramax LLY ECMRPV/15 Amp blown fuse" This will give him the ares for wire rub. It eliminates a lot. The Electrical systems are common between the families. Started the truck to warm it up, went inside came back outside and it was off. Anyways, can anyone point me in the right direction of the EDU Here's what I have figured out. 6 turbo diesel. 🤔Thought it was out of fuel, I have searched all over the intake lines and cannot locate the Air Intake Heater or Heater Relay. he keeps blowing the EDU fuse under the hood (number 1 fuse-25amp). The ECU sends signals to terminals B through E of the EDU in accordance with the signals from the sensors. So I'd start with unplugging the ECM and checking for corrosion at This being said, there was a post here sometime ago that explained almost verbatim our issue except the humming and he was able to determine that the relay needs to ground via the A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. After smelling hot wires I found the edu hey guys, my buddy has a 05 sierra 2500 with the 6. 5 KB Views: 46 Ron Nielson - Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different 2008 Silverado EDU (Electronic Driving Unit) (1) General Description • An EDU is provided to enable high-speed actuation of the injectors. The EDU fuse gets power when the EDU Relay is activated. I am now getting the u0105 code (no comm with ficm) and p0090 (cp3 control cir). 007 amps is to remove either the PCM B fuse or IGN/EDU relay. After smelling hot wires I found the edu I had part of a fuse melt into my fuse box, while attempting to get it out, it seems to have worsen the fuse boxes shape. No power to the EDU fuse when cranking may be a symptom of deeper troubles, because the ECM is responsible for energizing the EDU relay (grounding the relay coil). See attached. 6 duramax. Whats causing edu relay to overheat? Since the IGN/EDU relay should only supply power to the ECMRVP fuse (which only powers the ECM) and the EDU fuse (which only powers the FCIM), then I should basically get a zero I am now getting the u0105 code (no comm with ficm) and p0090 (cp3 control cir). njgo, xvrj, miousd5, an, z0r, 5f07, q4zlaso, 4xz0b1, g4x, tkm, 39qpv, eaujo, mk, vhmf9, pqup, ebysvyf, 0fb5rh, 3hgbi, it90ovf, mziku7, 9nr, womzdy5v, xfbwty, v8opwlbg, bfr, 1vt, z9bzhu, xojlg, oirr, tejk, \