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Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 8414
Experience:  I am ASE Master Truck Certified.
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What wire feeds the ignition on a 1989 cat 3176 engine,

Customer Question

What wire feeds the ignition on a 1989 cat 3176 engine
JA: What is the complete model and serial number of your machine?
Customer: 2yg02307
JA: Are you fixing this yourself? What have you tried so far?
Customer: Yes... I need the pin and wire number that feeds the ecm
JA: Anything else you want the equipment mechanic to know before I connect you?
Customer: No
Submitted: 1 month ago.
Category: Medium and Heavy Trucks
Expert:  Cat Man replied 1 month ago.
Thanks for asking your question. I will try and help you out.
I can get you the info you need. Be back in a few minutes.
Expert:  Cat Man replied 1 month ago.

Here is the info you need.

https://www.dropbox.com/s/piojq3otc8aenzk/2YG%20sch.pdf?dl=0

It shows the key switch wires are pins 1 and 11
​Please reply back if you need more help or have more questions. I am happy to assist.

Customer: replied 1 month ago.
What feeds ignition to the ecm
Expert:  Cat Man replied 1 month ago.
A wire should run straight from the ignition switch.
Expert:  Cat Man replied 1 month ago.
Or to a relay then the ecm.
Customer: replied 1 month ago.
pin 1 and pin 11 both go directly to the battery...coming from the key switch, which pin do I go to to feed ignition power to the ecm?
Expert:  Cat Man replied 1 month ago.
Those are the only power wires that go to the ecm.