Bosch 160a alt wiring help

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Mikes78K20

Junior Member
Joined
Apr 2, 2020
Posts
10
Reaction score
2
Location
SW Warshington
First Name
Mike
Truck Year
1978
Truck Model
K20
Engine Size
5.7 currently...5.3 future
Looking for the pin outs for a Bosch 160 amp alternator from a 2007 Escalade. Search came up empty.
Bosch 0124525104 or GM 15128978.
It's a 3 wire alternator with battery, and 2 small wires straight out the back. What do those 2 wires get hooked up to?
Library remains closed due to this damn Chinese virus or I'd have my answer.
Thanks, Mike
 

Mikes78K20

Junior Member
Joined
Apr 2, 2020
Posts
10
Reaction score
2
Location
SW Warshington
First Name
Mike
Truck Year
1978
Truck Model
K20
Engine Size
5.7 currently...5.3 future
Talked to the stealership a couple days ago and got my answer.
The computer outputs a square wave signal based on the battery state of charge by using a sensor on a battery cable.
If it doesn't see that signal, the alternator defaults to 13.8 volts or doesn't charge at all.
Damn, waste of time and $$.
Anyone want an alternator? It's a paperweight to me at this point.
 
Last edited:

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,121
Reaction score
6,038
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
Talked to the stealership a couple days ago and got my answer.
The computer outputs a square wave signal based on the battery state of charge by using a sensor on a battery cable.
If it doesn't see that signal, the alternator defaults to 13.8 volts or doesn't charge at all.
Damn, waste of time and $$.
Anyone want an alternator? It's a paperweight to me at this point.
hi
 

Latest posts

Forum statistics

Threads
41,856
Posts
903,623
Members
33,370
Latest member
mitchell1128
Top