How to Troubleshoot ABS, VSC, and Airbag Warning Lights on a 2007 Toyota Prius?

It sounds like you're dealing with a frustrating issue with your ABS system. Since you've already swapped the brake control power supply modules and replaced the fuses related to the ABS, it seems like there might be a glitch in the system. Given that the brakes are functioning normally and the pedal feels fine, the next step would be to consider resetting or reflashing the computer system. If you have access to a code reader, clearing the memory could help resolve any lingering issues. Sometimes, after making changes to the brake components, the system needs a reset to recognize those changes. If you try that, keep an eye on whether the warning light goes away or if any new codes appear. If the problem persists even after the reset, I recommend taking your vehicle to a reputable shop or dealer. They often have specialized tools and knowledge that can diagnose issues that might not be apparent through standard troubleshooting. It's not uncommon for certain fixes to be proprietary, so they might have insights that aren't widely available. Ultimately, the goal is to ensure that the ABS system is functioning correctly for your safety. If you do decide to go to a dealer, make sure to explain all the steps you've already taken, as this can help them narrow down the issue more quickly.

If you see the red triangle warning light on your dashboard, it's a good idea to start by checking the braking system sensor. This sensor plays a crucial role in monitoring the performance of your brakes, and if it's malfunctioning, it could trigger that warning light. First, ensure that the sensor itself is functioning properly. Sometimes, it might just be a loose connection or dirt affecting its performance. If you’re comfortable doing so, you can inspect the wiring and connections to make sure everything looks secure and clean. If you notice any damage or wear, it might be time to replace the sensor. If the sensor seems fine, the issue could be deeper within the braking system. It’s essential to pay attention to how your brakes feel when you drive. If you notice any unusual sounds, vibrations, or a decrease in braking performance, it’s best to have a professional mechanic take a look. They can run diagnostic tests to pinpoint the exact problem and ensure your braking system is safe and functioning correctly. Ignoring warning lights can lead to more significant issues down the road, so addressing it sooner rather than later is always a smart move. Keeping your braking system in top shape is vital for your safety and the safety of others on the road.