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Are all the ones posted on eBay bad? I know you're a capable eBay hound, but I see them posted all the time (I just never look closely at them).
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LMTV CTIS Question
- Thread starter Union5
- Start date
Sgthoffer
Member
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They say bad on the listings or marked bad.
snowtrac nome
Well-known member
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I have one that is kind of bad, it works for a while than out of the blue starts with the 5 lights after a while. I know the controller is the problem, because I swapped it with a spare I found in my truck when I got it. I was always able to shut the truck down for a few minutes and re start it again and it would function again properly for a while.
- 6,861
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- Stratford/Connecticut
I have a bunch of extras. Would have to test them. Sometimes they are finicky.
Sgthoffer
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Cost?
snowtrac nome
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Superman if you find an extra that works pm me the price I might want an extra since I used the one I had
- 6,861
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- Stratford/Connecticut
I will see what I have Monday. They are not too expensive. I will warn you I have had ones that are happy in my test truck then not so much in others. Clean your wire harness plug connection lightly with an eraser.
Sgthoffer
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I will try the eraser. The blinking mine is making means what? I know bad, but why is it bad?
- 6,861
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I just watched your vid. Never seen that before. If they were all flickering I would say it could be harness/connection loss of power issue. But the highway light stays on. It's not supposed to do that. It's not a flashing scheme the lights do when there is an error. It's just going haywire.
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Maybe try some of this too (1200 5-star reviews should tell you something)... https://smile.amazon.com/dp/B00006LVEU/
Sgthoffer
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I tried an eraser and contact cleaner.. nothing.. same results.
Stellaevil
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673990 "Green ECU" These older ECUs are finding some going bad now.
676486 "Black ECU" Updated Replacement. May be hard to find aftermarket. Does have 1708 and CAN communications; if your truck has the 9 pin round/black service connector by the drivers left knee. Or you create a breakout cable between ECU and harness. Then can use diagnostic software from Dana to view fault codes and manually control the system for troubleshooting issues.
676486 "Black ECU" Updated Replacement. May be hard to find aftermarket. Does have 1708 and CAN communications; if your truck has the 9 pin round/black service connector by the drivers left knee. Or you create a breakout cable between ECU and harness. Then can use diagnostic software from Dana to view fault codes and manually control the system for troubleshooting issues.
Stellaevil
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Updated Troubleshooting Guide
FMTV Wiring was not correct.
[h=1]Forum: Technical Manuals[/h]https://www.steelsoldiers.com/showthread.php?175911-Central-Tire-Inflation-System-(CTIS)-AXTS-0015-2018
FMTV Wiring was not correct.
[h=1]Forum: Technical Manuals[/h]https://www.steelsoldiers.com/showthread.php?175911-Central-Tire-Inflation-System-(CTIS)-AXTS-0015-2018
lrholding
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I have read many threads but have yet to see a description of the fault i am seeing, upon start up the highway light flashes for a few seconds then the run flat,only joins in and flashes.....tires will eventually loose air pressure???
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Sounds like a bad hub seal
lrholding
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Thanks Suprman. Can you recall an existing thread on evaluating that further or recall where in tm it may be?
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The system does a pressure test, sees low and sends air which is diluted thru the bad hub seal leak and tricks the wheel valves to dump. Do you hear a siren sound?
lrholding
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No sound other than what i believe is the QRV or wheel valve opening to release air sporadically....Initially the HWY light would flash for longer before run flat joined in, now it is almost instantaneous....tires hold air. I was thinking pressure sensor/transducer of manifold may be whacky?
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Wheel valves cant just dump air. The manifold has to send a certain pressure to hold them open to allow for air dumping. Could be the manifold but if the system flashes hwy and then goes to run flat it seems to be sensing low tire pressure.
lrholding
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hmmm....can I fool the system by connecting 55 psi air tank to line feeding T, that feeds both QRVs? This would eliminate any issues downstream of that point?? Or is my thinking faulty here??
New to site, so not sure if we should have this conversation off of this thread????
New to site, so not sure if we should have this conversation off of this thread????