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Old 06-08-2023, 12:06 PM   #1
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Electric schematic for 98.5 cruismaster

Ecm wiring for coach got pulled out of 50 pin plug can not find schematic for plugging wires buck into plug. 29 wires into 50 pin block numbered Georgie boy 24valve Cummins
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Old 06-08-2023, 01:33 PM   #2
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Electric schematic for 98.5 cruismaster

Maybe attach will help some, Its wiring for my 1998.5 ISB 24 valve which should be same as yours.


Hopefully the numbers on wires match up with the drawing.
Attached Files
File Type: pdf isb wiring.pdf (858.7 KB, 11 views)
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Old 06-08-2023, 06:44 PM   #3
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Just in case you have a Freightliner chassis , maybe this pdf ( page 2 ) will help .
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File Type: pdf 1998 Freightlier with ISB schematics.pdf (1.42 MB, 9 views)
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Old 06-14-2023, 05:38 PM   #4
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Quote:
Originally Posted by Jon_C View Post
Maybe attach will help some, Its wiring for my 1998.5 ISB 24 valve which should be same as yours.


Hopefully the numbers on wires match up with the drawing.
My ECM #s are different than yours, any idea where can find schematic for other ECM #s
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Old 06-15-2023, 12:34 PM   #5
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The schematic I sent is for a freightliner chassis so yours must not be on freightliner?

I know Dodge made their own ECM for the 5.9 in trucks, maybe youíve got that one. I think it only has 1 connector vs the 2 in the cummins / freightliner ECM.

I donít have a Dodge schematic on hand right now
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Old 06-15-2023, 01:41 PM   #6
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My ECM #3942860 has 2plugs Freightliner xc chassis Cummins 24v
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Old 06-15-2023, 02:30 PM   #7
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Electric schematic for 98.5 cruismaster

My ecm is 3942858 seems the schematic would be correct for such close part numbers. How can you tell its not right?

Edit ok I see the part numbers on the dwg.

I think I got that drawing off the cummins quickserve site. If you donít have an account its free and based on your engine serial number so you get correct info.

https://quickserve.cummins.com/info/index.html
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