Big Creek Op
Member
I have a D5m 6GN with a 819 fo2 serv code and the quad gauges don't work .Need help?
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D5mxl
- Thread starter Big Creek Op
- Start date
Nige
Senior Member
Here's the Troubleshooting Procedure. Worst case scenario the quad guage unit may have failed but do all the harness tests first before officially declaring it dead. Note that if the procedure indicates that the module is dead it recommends repeating all the tests a 2nd time just to make sure.
Big Creek Op
Member
Thanks Nige all my test points to the control gp 126-9401.
Nige
Senior Member
Sorry to hear that. I hope you did all the tests a second time as recommended in the troubleshooting procedure before declaring the unit dead.
Be careful about the Part Number for the quad gauge. There appear to be various Part Numbers depending on whether the machine has a cab or not, and also what Serial Number range the tractor falls into. The options are: -
6GN0001-1532 cab
6GN1533-2126 cab
6GN2127-Up cab
6GN00001-1148 open ROPS
6GN-1149-1632 open ROPS
6GN-1533-2126 open ROPS
6GN2127-Up open ROPS
Which group does your machine fall into..?
Be careful about the Part Number for the quad gauge. There appear to be various Part Numbers depending on whether the machine has a cab or not, and also what Serial Number range the tractor falls into. The options are: -
6GN0001-1532 cab
6GN1533-2126 cab
6GN2127-Up cab
6GN00001-1148 open ROPS
6GN-1149-1632 open ROPS
6GN-1533-2126 open ROPS
6GN2127-Up open ROPS
Which group does your machine fall into..?
Big Creek Op
Member
It's a 6GN0946 open ROPS.
Nige
Senior Member
Based on that info your 126-9401 number is good.
126-9401 has been replaced by a newer number which is 196-4681. Also a Reman Part Number 10R-5906 which ought to be significantly cheaper than buying new.
126-9401 has been replaced by a newer number which is 196-4681. Also a Reman Part Number 10R-5906 which ought to be significantly cheaper than buying new.
Big Creek Op
Member
Nige do you know if that would need calibration after installation .
Nige
Senior Member
No it will not. Plug in and away you go.
Big Creek Op
Member
Well I put the new control mod on today it reads no app. Cat dealer says have to bring dozer in for programing.
Nige
Senior Member
Cheeky SOB's............ they could have told you the initialization procedure. You can do it yourself.
You need to find the Harness Code Plug. It's a grey or black rectangular 6-pin connector located right next to the ECM for the powertrain under the LH console that doesn't seem to go anywhere. All it has a a couple of short jumper leads going from one pin to another. Shown by the arrow in the photo.
1. Both the battery master switch and the key switch should be OFF.
2. Remove the Harness Code Plug.
3. Turn the Master Switch ON and then do the same with the key switch.
4. The Monitor Panel will power up and various indicators will illuminate.
5. Wait at least 10 seconds then turn the key switch OFF. (Master Switch stays ON).
6. Reinstall the Harness Code Plug.
7. Turn the key switch ON and verify that the Monitor Panel completes its self-test correctly.
You need to find the Harness Code Plug. It's a grey or black rectangular 6-pin connector located right next to the ECM for the powertrain under the LH console that doesn't seem to go anywhere. All it has a a couple of short jumper leads going from one pin to another. Shown by the arrow in the photo.
1. Both the battery master switch and the key switch should be OFF.
2. Remove the Harness Code Plug.
3. Turn the Master Switch ON and then do the same with the key switch.
4. The Monitor Panel will power up and various indicators will illuminate.
5. Wait at least 10 seconds then turn the key switch OFF. (Master Switch stays ON).
6. Reinstall the Harness Code Plug.
7. Turn the key switch ON and verify that the Monitor Panel completes its self-test correctly.
Big Creek Op
Member
Tried 4 times still says no app
Big Creek Op
Member
The part # has changed again on the control mod . Cat says the ECM has to be updated. New part# 10r-5894
Last edited:
Nige
Senior Member
The 10R-5984 that the dealer sold you is known as EMS III. Your machine was built with EMS II and so the ECM has to be loaded with upgraded software to make it compatible. My bad, I missed that upgrade.
However if the dealer has (or can make or borrow from another one of their stores) a Bypass Harness for the ECM it should not be necessary to take the tractor to them. You could simply remove the ECM and they could flash it in their shop. I used to flash ECMs while I was sitting at my desk.
See attached. Even if the dealer has a machine of a similar type sitting in their shop (fair chance - t's a list 6 pages long) they could temporarily install your ECM on a machine to flash it, meaning a Bypass Harness would be unecessary.
However if the dealer has (or can make or borrow from another one of their stores) a Bypass Harness for the ECM it should not be necessary to take the tractor to them. You could simply remove the ECM and they could flash it in their shop. I used to flash ECMs while I was sitting at my desk.
See attached. Even if the dealer has a machine of a similar type sitting in their shop (fair chance - t's a list 6 pages long) they could temporarily install your ECM on a machine to flash it, meaning a Bypass Harness would be unecessary.
Big Creek Op
Member
I hauled the dozer to cat for update.service manager calls 4 hours later says new module I put on is bad want update to ems111 . I thought it was ems111 he says ecm has nothing to do with it. I thought the ecm had to be updated to ems111 to be compatible with the new module?
Nige
Senior Member
I must be brain-dead today........ 
The software has to be flashed into the new 10R-5894 Monitor System Module, not the Power Train ECM. See about half-way down Page 9 for the details. I saw the bypass harness and jumped to the wrong conclusion.
The Module you bought is EMS III by the way. See the attachment. The EMS III Module for your D5M is P/N 252-4501. 10R-5894 is listed as the Reman option for 252-4501.
The software has to be flashed into the new 10R-5894 Monitor System Module, not the Power Train ECM. See about half-way down Page 9 for the details. I saw the bypass harness and jumped to the wrong conclusion.
The Module you bought is EMS III by the way. See the attachment. The EMS III Module for your D5M is P/N 252-4501. 10R-5894 is listed as the Reman option for 252-4501.
Big Creek Op
Member
I don't understand why I buy the part cat says is for my machine.Then put said part on my machine.Then have to carry it to cat to program the part.when they could flash the part with it off the machine.
Nige
Senior Member
100% correct, and you should be confronting the Service Manager with the document from post my #13 above as proof.
Again, apologies for the confusion between the Monitor and the Power Train ECM, but either way it should only have been necessary to carry an electronic component to the dealership and have them program it there, not the complete machine.
Again, apologies for the confusion between the Monitor and the Power Train ECM, but either way it should only have been necessary to carry an electronic component to the dealership and have them program it there, not the complete machine.
Big Creek Op
Member
The new module I installed would not flash. Cat said bad module so they ordered another one installed it at cat.It would not flash also.They determined it was wrong one. They ordered another one it worked. And it fixed the gauge problem.Thanks for help Nige !
Nige
Senior Member
Do you have any idea what Part Number they finally ended up installing that worked..?
Big Creek Op
Member
10r-5894 was the right one and that was the # on the box.But the # on the module was a new #. It was not a reman #. Cat said it was a packaging error.