signal light question

[Deny1950]

hi wondering if someone can help me. I have a signal stat 900 that has 10 wires and when i googled it for wiring diagram all i could find was for 7 wire. Don't know what the other 3 wires are for can anyone help? Thanks Denis

 

[rotorwrench]

The 10-wire 915 types are OEM replacements for large semi-tractors that have other features added in that the universal types don't have. This link is for a Peterbuilt tractor.
https://www.truck-lite.com/915y124.html

Headlight dimming feature is one and signal alarm is another. I couldn't find diagram since it uses the OEM harness.

 

[Gary WA]

hi wondering if someone can help me. I have a signal stat 900 that has 10 wires and when i googled it for wiring diagram all i could find was for 7 wire. Don't know what the other 3 wires are for can anyone help? Thanks Denis

will this help