Hi guys I'm working on a 97 pete 379 with a cummins m11 select plus no start can not log onto computer so it appears computer is not powering up I have the book and pin out for a select but not a select plus I've got power at the computer from the battery and I've got my ground from computer to battery also have key switch power at computer fuses are all good so I'm thinking the ecm is fried just need the pin outs to verify the wire numbers any help would be appreciated thanks
m11 harness pinout
Discussion in 'Trucks [ Eighteen Wheelers ]' started by truckmechanic, Jan 18, 2012.
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Actuator connector C the fuel shut down solinoid is pin out 16 wire 038
ignition key is pin 26 wire 033
Sensor connector A, engine position sensor wire 002 at sensor plug A, at ECM pin 11, wire 003 at sensor plug B ECM pin 15. Wire 004 at sensor plug c, at ECM pin 01. wire 001 at sensor plug D ECM pin 14.
on the data plug A is positive and B is negative
C is unswitched battery power Positive
Any others you want just post them up!rank Thanks this. -
I show the power and grounds are the same. As far I know the difference between the two is programming and available electronic features.
rank Thanks this. -
Thanks for the help guys i appreciate it ill Check it out tomarro
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M11 shares ECM with N14, so you can easily use N14 wiring diagram
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Thanks Pablo the wires have a diffrent number from select to select plus I was thinking lt was the key on wire that was causing the problem I figures but I wanted to make sure I had the right wire before I started digging deeper that's the problem I had no power at connector 26 so I ran a hot wire from the batt to it and it fired up so now to run the wire into the cab I hate projects like this this poor truck was non oped 2 years ago now they want to get it running and off course ita been used as a parts truck ecm was missing half the switches and relays missing just gotta to love working on projects that other people have f##ked and robbed parts off of agin I appreciate the help guys
rank Thanks this. -
M11s keep running here. Celect Plus is better ECM, there is J1939 for auto, ABS/EBS, but it is less reliable and with bad sparkly wiring you can easily get 111 fault code (internal ECM fault), that can be fixed with soldering and chip programmer!
Celect is more reliable thingrank Thanks this. -
LOL, actually I should have taken a picture. We had a service call at a local municipal shop for a snow plow that would not start. We found this thing had so much salt built up around everything that the ECM (M11 too), had a hole corroded right through it and you could see the board inside! No fixing that one, we installed a new ECM today and it fired right up.
rank Thanks this. -
Luckly I don't get to much salt here in socal but I've worked on a lot off trucks that run coast to coast and salt causes a lot of headaches.on the m11 I found a broken wire at a relay buried inside the dash luckly was not to hard just a pain to trace it back from the ecm to the firewall then have to open the harnesses but that's why we make the big bucks Ruth lol now boss was to cheap to put any money into it so I had to put my foot down I can't stand half adding things especially something that costs 10 bucks someone cut the factory ecm harness from batts and left the inline fuse out I don't know how many times I see those wires rubbed through near the starter or on motor mount bolts just not worth risking for 10 bucks
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i'd get rusty one for parts)))))
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