4L65e Neutral Safety Switch and Reverse Lights

[dayj1]

Originally Posted by lutronjim

Dayj1

Does the switch provide prn1234 - when you said dash indicator ?

Thanks

Yes. But there are 7 gear positions (for a 4Lxx trans) and only 4 gear position signal wires. So, it’s a switch matrix instead of discrete outputs. In other words, it takes some electronics to decode the signals into what gear you’re in. I don’t have it handy, but the information is in the GM schematics.