How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Daniel Wilson Your Own Question
Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 2087
Experience:  Owner at DJ Wilson
65405794
Type Your Medium and Heavy Trucks Question Here...
Daniel Wilson is online now
A new question is answered every 9 seconds

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: 10 months ago.
Category: Medium and Heavy Trucks
Expert:  go-west.. replied 10 months ago.

Good afternoon

can i get the harness number please

should start in a06-

Customer: replied 10 months ago.
harness number 06-20445-000
Expert:  go-west.. replied 10 months ago.

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

Let me know if you have anymore questions

Customer: replied 10 months ago.
my firewall connector has a 23 pin all leter plug
Expert:  go-west.. replied 10 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 10 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 10 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 10 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 10 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 10 months ago.
s/n 7lg21251 is the engine number with jakes also both trucks and engines are the same year
Expert:  go-west.. replied 10 months ago.

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

Customer: replied 10 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 10 months ago.

how about the truck without

i want to see something..

Customer: replied 10 months ago.
461427
Customer: replied 10 months ago.
I do have that page unable to find the missing link looking again
Expert:  go-west.. replied 10 months ago.

ok,Let me know you do

Customer: replied 10 months ago.
I do not see wire numbers to connect my new wires c716 and c717 to
Expert:  go-west.. replied 10 months ago.

we may have to rewire this from scatch,,

Customer: replied 10 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 10 months ago.

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

Customer: replied 10 months ago.
those are the ones I just tried to describe
Expert:  go-west.. replied 10 months ago.

Good

wire it per that cat diagram

Its a perfect guide

Customer: replied 10 months ago.
can you show me what module 286 is?
Customer: replied 10 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 10 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 10 months ago.

Good day

how did it go ??