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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 1726
Experience:  Owner at DJ Wilson
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I installed a Cat 3176 with jake brakes in a fld112 that was

Customer Question

i installed a Cat 3176 with jake brakes in a fld112 that was not wired for Jakes i have purchased the cab harness and switches and installed them need to know pin position number or letter at fire wall
Submitted: 3 months ago.
Category: Medium and Heavy Trucks
Expert:  go-west.. replied 3 months ago.

Good afternoon

can i get the harness number please

should start in a06-

Customer: replied 3 months ago.
harness number 06-20445-000
Expert:  go-west.. replied 3 months ago.

https://www.dropbox.com/s/miv363h2s7dzodl/Cat%20eb.pdf?dl=0

Let me know if you have anymore questions

Customer: replied 3 months ago.
my firewall connector has a 23 pin all leter plug
Expert:  go-west.. replied 3 months ago.

does the outside harness have the high/low and med/wires wired ?

if not we might have to go directly to the ecm,which is ok as well

Customer: replied 3 months ago.
I have the harness off the truck that had jakes and the truck without jakes and they both have the exact wires in them so I'm thinking the wires are in there just un certain which letters to install wires into
Expert:  go-west.. replied 3 months ago.

ok

if you have the outside harness then locatate c716 and c717

find out what slots they are in and then match them up

Customer: replied 3 months ago.
neither harness has a c716 or a c717 in them is it possible they came away from 23 pin connector as another number
Expert:  go-west.. replied 3 months ago.

Usually not

what is the engine serial number,we will have to wire to the ecm directly,also there is a possibility that the ecm may have to be programmed to accept the jake wiring inputs.we will know when we test it..

Customer: replied 3 months ago.
s/n 7lg21251 is the engine number with jakes also both trucks and engines are the same year
Expert:  go-west.. replied 3 months ago.

Please give the last 6 of the trucks vin with engine brakes

Customer: replied 3 months ago.
that's a problem I was unable to aquire that I hoped there was a way to use the engine s/n to get vin.
Expert:  go-west.. replied 3 months ago.

how about the truck without

i want to see something..

Customer: replied 3 months ago.
461427
Customer: replied 3 months ago.
I do have that page unable to find the missing link looking again
Expert:  go-west.. replied 3 months ago.

ok,Let me know you do

Customer: replied 3 months ago.
I do not see wire numbers to connect my new wires c716 and c717 to
Expert:  go-west.. replied 3 months ago.

we may have to rewire this from scatch,,

Customer: replied 3 months ago.
starting from the jake external 3 pins outerside of jake housings we have 121d 121c 121d going to a 2pin plug 121c and 121d this plug is not connected to anything this doesnt solve the other issue but maybe we can work back to that
Expert:  go-west.. replied 3 months ago.

is there wires at the 3 contacts at the jake housings at the engine ?

Customer: replied 3 months ago.
those are the ones I just tried to describe
Expert:  go-west.. replied 3 months ago.

Good

wire it per that cat diagram

Its a perfect guide

Customer: replied 3 months ago.
can you show me what module 286 is?
Customer: replied 3 months ago.
can harness number 06--20445-000 be connected to fire wall harness in vin. 461427 or what wire numbers in harness run jakes
Expert:  go-west.. replied 3 months ago.

I was thinking about this one,per the diagram we need and relay for this to work,and this harness that you have is very basic,Look at that cat diagram again and you will see.

Expert:  go-west.. replied 3 months ago.

Good day

how did it go ??

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