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  1. KLChurch

    mep 004a no fault lights working plus more

    Checked it at the pins and only one way. Kris
  2. KLChurch

    mep 004a no fault lights working plus more

    I checked it at the diode. Will check at the pins and report back in a couple mins. Kris
  3. KLChurch

    mep 004a no fault lights working plus more

    Got both ways continuity There was no wire connected to pin 23 Checked again and only one way. Don't know how I got both ways but I had to scrape the coating off the wires to the diode then I got better readings. Kris
  4. KLChurch

    mep 004a no fault lights working plus more

    OK it will take me several hours to do so. Kris
  5. KLChurch

    mep 004a no fault lights working plus more

    Solder worked perfectly for the size holes in the connector. Kris
  6. KLChurch

    mep 004a no fault lights working plus more

    Jumped A&B and no low fuel pressure light , only low oil pressure. Test mode low fuel pressure lit up. Jumped C&D and no fuel pumps on in run mode. Kris
  7. KLChurch

    mep 004a no fault lights working plus more

    Fixen to do the J33 C-plug Thing Kris
  8. KLChurch

    mep 004a no fault lights working plus more

    On the IP. I took off the wires to the IP while batteries unattached and checked Checked each terminal to frame ground. One no continuity and the other had continuity. Also I did the same thing checking only the wires when they were unattached They checked opposite of the terminals. One no...
  9. KLChurch

    mep 004a no fault lights working plus more

    update Drained all diesel from the day tank I could . Maybe half gallon. Attached batteries. Run mode no pump operation. Battle mode pump operation. So far no change with the pumps operations Kris
  10. KLChurch

    mep 004a no fault lights working plus more

    Ok will drain the tank and go to the run mode then see if the pumps go on. Does A5 R3 have anything to do with this part of the investigation? Kris
  11. KLChurch

    mep 004a no fault lights working plus more

    Guyfang, Please read all the posts since you replied
  12. KLChurch

    mep 004a no fault lights working plus more

    Decided to check the wires and terminals separately. Still batteries unattached and stop mode PB0n wire had continuity with frame ground. The terminal with unattached wire no continuity P55X wire had no continuity and the terminal had continuity. So I guess that when the wires hitched up both...
  13. KLChurch

    mep 004a no fault lights working plus more

    I just checked The IP wires P55X and P80N without the batteries attached and Stop mode. Put black wire MM on gen a bolt, and other red end separately checked both terminals at IP. Both showed continuity. Kris
  14. KLChurch

    mep 004a no fault lights working plus more

    I went ahead and reinstalled SP box without addressing R3. Had some good results Fault indicator lights now working. In the run command low pressure light comes on. Test mode all but the burned out lights come on. Still two lights are burned out because I have not replaced them. The pumps still...
  15. KLChurch

    mep 004a no fault lights working plus more

    Guyfang On the back of A5 the open or toasted runner went to the K5 and K8 relays if that gives any help. Kris
  16. KLChurch

    mep 004a no fault lights working plus more

    Need an opinion to replace R3 toasted resister. It seems to be OK with the meter. Kris
  17. KLChurch

    mep 004a no fault lights working plus more

    The yellow wires I used to repair the back of A5 Kris
  18. KLChurch

    mep 004a no fault lights working plus more

    Bench Checked all three A5 relays to be ok Kris
  19. KLChurch

    mep 004a no fault lights working plus more

    By the way I don't think it was your fault. You did in the past tell me to look on the back sides of the circuit boards. But I believe we were checking the opposite side of the SP box checking the wiring and I believe everything checked OK. I will never ever check the back side again with a...
  20. KLChurch

    mep 004a no fault lights working plus more

    I checked the resisters still on the board with a digital ohm meter. R3 1.498 R8 2.676 R9 5.05 R6 5.05 R7 2.661 I have not found what they should be in the PDF manuals. but plugged the part numbers in google and they are coming up. However the docs say to check them out off the circuit board...
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