Sorry, not familiar with the TDM and VATS tune. Can you elaborate a little more? Is there any other way to disable this light? Have yet to try the contact cleaner route.
you can disable the light by removing it. You can resolve the underlying issue by trying to clean the pellet or ignition cylinder. You can use isopropyl alcohol 99% as well. Or you can disable the TDM. The way to do it comes up in a search.
You can essentially fix the pass key fault issue for 0$, provided VATS is disabled in your .bin.
- Disable VATS in tune. If you've had your car tuned, hopefully it's already done. IIRC PCM4less does it automatically.
- move your driver's seat back and lie on your back looking under the dash. Over the E-brake, there's a black box held on by 1x 7mm screw. That is the Theft Deterrent Module (TDM) Remove the screw, drop the box. Detach the relay from the box but leave the relay connected. Remove the connector to the TDM, then jumper A4 to B5 (yellow/gray to black/white). http://www.goldsswagon.com/diagrams/...key_no_seo.pdf
See this post for pic of the TDM: https://www.impalassforum.com/vBullet...5-post210.html
<< found in search
user TGO's method works, but is a more complicated way of doing the same thing.
You can also use the resistor method, but I don't like it because it's more complicated for no reason. By disabling your car can be started with any correctly cut key, with or without pellets. The Pass Key Fault light will no longer illuminate, nor will the TDM disable injectors or starter.