MancheKid86 Posted May 4 Share Posted May 4 4wd ax15/np231 swapped from 2wd ba10/5 As i am repinning the 4 pin connector for reverse lights (melted connector) noticed the red/black wire to ecu and black/blue wire b5 in firewall junction. which in the fsm electrical confirms upshift circuit +when probed upshift light comes on. iirc the upshift indicator is preprogrammed to come on at a specific rpm range of engine does it connect to anything or is it just used as a diagonstic port to ensure function of the factory set up shift indicator? Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 4 Share Posted May 4 It connects to a sensor that I dont think can be had new anymore. The sensor has a sprung ball bearing on the end of it that pushes against a shaft in the transmission that sends the speed back to the ECU to trigger the light. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now