Have 2004 John Deere 200clc just purchased and runs starts fine can run for 30 mins or and hour no problems. Then some times you can start machine cold and check engine light comes on flashing and some times alternator light comes on then goes out while running.when it comes back on you shut off the machine and start it back light will go out and sometimes comeback on what mite be the problem here thanks
There is an ECU diagnostic display unit (DDU) in the area of the batteries. Check the display for any active and stored engine service codes. See link to DDU info from 200CLC Operators manual below. https://techinfo-omview.apps-prod-v...recloud.com/omview/omt187348/09001faa801e430f .
Mine doesn’t seem to be working There a yellow light that will come on the go off but try to push arrows nothing happens is there something I should check I did check the fuses inside cab and were good any other places to look to fix the ddu to work to see codes
Check the (3) 15 Amp fuses in the area of the DDU /ECU tray.
There is a relay in the DDU / ECU location as well. Also post the machine serial #
Serial# FF200CX503561
Level 4 ECU with Bosch VP44 fuel injection system , engine model 6068HT053 . Find DDU wiring diagram from engine tech manual. .
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All three fuse are good checking relay and diodes
Forgot to ask, are there any performance issues when the check engine light is on ?
Yes sometimes it does other times it does not
Does the engine have a miss , erratic speeds or is lacking power when the check engine light is on ?
Yes it will then sometimes the check engine light will go out and run fine Checked the diodes and nodes are at the right ohms think a wire connection could be my problem still not able to read codes
To verify the wiring , you will need the machine Deere Operation and test manual # TM1930
If the ddu is getting power could that mean the ddu is bad the yellow light comes on then goes out when key is cycled on and could a sensor cause me to have intermittent issues
Per the manual ,the Check Engine Indicator will flash when the engine derate reaches 50% due to the following conditions: Low fuel pressure, high fuel temperature, crank sensor fault, defective fuel injection pump ,ECU, or a failure in ECU to injection pump ECU communications. If the DDU is not functioning,I would focus on the wiring connections at the above sensors (i couldn’t find a fuel temperature sensor) ,the injection pump and the ECU.
Per your serial # , the engine has an electric fuel transfer pump. Maybe check the wiring connections on the fuel transfer pump as well.
Will do that tomorrow thank you
I believe the fuel temperature sensor is incorporated into the controller mounted on top of the VP44 injection pump.
That’s for all your help diesel Dave I think I have it figured out think is fuel pressure issue because I was looking into the fuel transfer pump and when cycling key pump would kick on strong then immediately start to not pump as hard and take the electric pump off and when I did it was covered in rust and debris from fuel tank so I think pump was the issue
What is best way to clean tank and would pre filter before electric pump work?
What are you trying to show in the picture on post #22 ? . The electric fuel pump may be salvageable if you can get the crap out of it. The electric pump may also be starving for fuel. There is a shut off valve in the bottom of the fuel tank connected to the fuel supply hose. I bet the shut off valve passage is heavily restricted. Depending on how much rust/ dirt/ debris is in the bottom of the fuel tank you may have to remove the tank to wash it out properly.
That was the rust and dirt in the electric pump was from the tank
I edited post #23.
Will drain fuel and look and look in valve and what would be best to clean out tank out with? Thanks for help
A shop vac would work if the debris is loose . If there is a lot of debris may have to remove the tank, hang the tank upside down and pressure wash it out.
If it is heavily soiled, we cut the side of the tank open so we can get in there to clean it thoroughly, then weld it back together after cleanup. I don't recall on that specific tank, but some excavator tanks have internal bracing, so the cut has to miss that.