Like the SRS plug in the steering column, I think you have to jumper the TCS light pins Easiest way probably is to unplug the TCS unit on the firewall (since you're not using it anymore) and find the pins in the harness that send the ground to the dash light and jumper them with a short wire. Are you going to use the TCS in the AEM? Might be worth it, as it is a ncie safety feature.