• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Search results

  1. G

    Cat 279d3 crank no start. Cose e459-2

    I’ll have to talk to my boss. He gets all the information. I don’t ever get to see it unfortunately
  2. G

    Cat 279d3 crank no start. Cose e459-2

    I’m not sure haven’t got a chance to look yet. Just going on what cat said.
  3. G

    Cat 279d3 crank no start. Cose e459-2

    46 is the ones I found. Somewhere there is to be more
  4. G

    Cat 279d3 crank no start. Cose e459-2

    I did get the stuff to build s test light like you recommended.
  5. G

    Cat 279d3 crank no start. Cose e459-2

    It ended up being a fuse under the cab that I had no clue were even there. I found six that were 30 and 50 amp fuse but they were all good. I haven’t had a chance to look under the cab since cat was out to find where they are. Can’t seem to locate them in the schematic yet.
  6. G

    Cat 279d3 crank no start. Cose e459-2

    Good to know. For both.
  7. G

    Cat 279d3 crank no start. Cose e459-2

    I did ohm the wire 903 from pin at relay and pin 3 at ecm with no problems. Leaning towards bad ecm. Boss said hang it up. He is calling cat to come look at it. I will post the ending problem. I really would like to know my self. Thank you so much for your help!
  8. G

    Cat 279d3 crank no start. Cose e459-2

    Very true. I agree its either a bad wire or ecm
  9. G

    Cat 279d3 crank no start. Cose e459-2

    The engine temp sensor on the dash also just says faulted. With relay in normal with the code e459-2
  10. G

    Cat 279d3 crank no start. Cose e459-2

    1485-2
  11. G

    Cat 279d3 crank no start. Cose e459-2

    Ecm main relay data erratic, Intermittent or incorrect
  12. G

    Cat 279d3 crank no start. Cose e459-2

    I did try that. When i do. The e459 gors away then a code comes up that says erratic signal from ecm relay. Wont crank
  13. G

    Cat 279d3 crank no start. Cose e459-2

    Negative. No power key on
  14. G

    Cat 279d3 crank no start. Cose e459-2

    I thought that seemed wrong.
  15. G

    Cat 279d3 crank no start. Cose e459-2

    Yeah, no power at 150-c147. No power on 23 and 25 at connector 4
  16. G

    Cat 279d3 crank no start. Cose e459-2

    No other codes. I am look at grounds on schematic. So far no new ones. According to the schematic i should have power with key off to three sides of the ecm relay I only have it on 2 no poser to 87
  17. G

    Cat 279d3 crank no start. Cose e459-2

    I have cleaned every ground i found so far. All at the battery. All the ones under the cab where it tethers to the chasis. Got a socket way back in on both ends where the engine is grounded to the chassis and cleaned the ground on the block behind the alternator
  18. G

    Cat 279d3 crank no start. Cose e459-2

    Sn cat0279dprb902995
  19. G

    Cat 279d3 crank no start. Cose e459-2

    Have checked grounds at ecm all have continuity to ground. The relay in fuse box for ecm dose not excite. I have both 12 volt supplies to the relay. If i ground the blue wire the code goes away but I get a speratic reading from ecm relay code. Have continuity from the back of relay post to both...
  20. G

    CAT 259D - No Crank E459-2 Code

    I am having the same issue with a 279d3. The relay for the engine ecu is not energizing. Could i get the wire schematics?
Top