View Single Post
Old 04-25-2019, 04:23 PM   #134
PDXREALTOR
Scooby Specialist
 
Member#: 468393
Join Date: May 2017
Location: PDX OREGON
Vehicle:
2017 STI

Default

I think my gauge and its included relay will work for map switching without adding any relays.

Here's the diagram I came up with - where should I put the ground off the TGV? Does the rest look OK?

ETA - I just tested the gauge and its fail-safe relay (as wired in the diagram below) with a 9 volt battery. Seemed to work as it should - put the gauge in fault mode and I get 0 volts - put the gauge in non-fault mode and I get 9 volts.

I think adding in a fuse on the 5 volt input line to the ECU is a good idea.

Now I just need confirmation on where to put the ground off the TGV plug...??



* Registered users of the site do not see these ads.

Last edited by PDXREALTOR; 04-25-2019 at 06:16 PM.
PDXREALTOR is offline   Reply With Quote