Hi everyone I seem to be having issues with a CS56B with operator inducement issues It has a new DEF head new DEF pump New coolant valve. But when I hook up to the unit and check my pump status it’s stuck on primming. And I still have the same code of operator inducement below normal. Any pointers ????
Operator inducement below normal
Started by Cat tech44 replies
Cat techJunior Member#1 NigeLegend#2 How about supplying a Serial Number and details of Codes are popping up.?
Cat techJunior Member#3 Nige said: How about supplying a Serial Number and details of Codes are popping up.? Click to expand... 1 def dosing unit 3361-6 At SCR operator inducement severity 5246-15 Serial number is 0s5601546
NigeLegend#4 Do you have the troubleshooting procedures for those two Codes.?
Cat techJunior Member#5 Nige said: Do you have the troubleshooting procedures for those two Codes.? Click to expand... Not at the moment.
NigeLegend#6 Cat tech said: Not at the moment. Click to expand... You do now.
Cat techJunior Member#7 Nige said: You do now. Click to expand... Thank you sir. I did the trouble shooting replaced a coolant valve that was giving me improper ohms reading But I when I’m hooked up to the unit and check the status on the def pump it stays on prime Can a bad nox sensor be causing these issues as well?
NigeLegend#8 I’m afraid I don’t know. Hopefully one of the emissions experts will chime in. TBH if a NOx sensor was bad I would’ve thought that it would have thrown a Code.
pittsburgh cat manSuper User#9 I was just thinking was it in limp mode? I seem to remember having to have a factory password to get them out of limp mode
Cat techJunior Member#10 pittsburgh cat man said: I was just thinking was it in limp mode? I seem to remember having to have a factory password to get them out of limp mode Click to expand... I goes into limp mode But I just moved it around right now and it didn’t go into limp mode this time but it still showing me operator inducement code.
pittsburgh cat manSuper User#11 I think I would put et on it run it and see what kind of live data it will show you on emission module you might be able to see what is not normal
Cat techJunior Member#12 pittsburgh cat man said: I think I would put et on it run it and see what kind of live data it will show you on emission module you might be able to see what is not normal Click to expand... i ran a wiggle test on it And DEF pressure is around 80 But my line 1,2,3 and showing offline as if it’s not picking up the communication as well as my coolant diverter valve.
pittsburgh cat manSuper User#13 Did you look at harness I seem to remember on some of those modules they would rub the harness thru and break the wires
Cat techJunior Member#14 pittsburgh cat man said: Did you look at harness I seem to remember on some of those modules they would rub the harness thru and break the wires Click to expand... Yeah I went through the harness don’t seem to find worn out loom on it Is their any specific are you would typically find worn out spots ?
ozarkagJunior Member#15 Nige said: I’m afraid I don’t know. Hopefully one of the emissions experts will chime in. TBH if a NOx sensor was bad I would’ve thought that it would have thrown a Code. Click to expand... Not likely a nox sensor. The dosing unit code triggers the other one. And it is a level one derate, so hasn't been going on too long yet.
ozarkagJunior Member#16 Cat tech said: I goes into limp mode But I just moved it around right now and it didn’t go into limp mode this time but it still showing me operator inducement code. Click to expand... Does it still have the dosing unit code after changing the coolant valve? If only the inducement code is active may require a healthy dose of ET to clear.
pittsburgh cat manSuper User#17 You could usually see the bad spot pretty easy. I sort of remember this I think I would run it for a while and see if it goes into limp
Cat techJunior Member#18 ozarkag said: Does it still have the dosing unit code after changing the coolant valve? If only the inducement code is active may require a healthy dose of ET to clear. Click to expand... I tried giving it the ET attention but it came back
Cat techJunior Member#19 pittsburgh cat man said: You could usually see the bad spot pretty easy. I sort of remember this I think I would run it for a while and see if it goes into limp Click to expand... I had started it this morning and it was running fine it didn’t go into limp mode but it was still showing the code Then I plugged in with et and I checked the graphs and everything seemed fine I did a after treatment test checked out good disconnected the ET Cycled the key went to drive it and it and it probably moved 5ft at most when I went into limp mode
pittsburgh cat manSuper User#20 If it went back in limp mode there is still a problem But I'm pretty sure It has to clear the codes it's self I have some old training on jump drives I'll try and check them in the morning