Quote:
Originally Posted by Cole0
I haven’t noticed any leaks. Just yesterday I reset the ABS and Trac lights and they have not come back on. I did a 60-mile trip today and the brakes felt good, but still heard the noise in referring to. It's more than just the ABS motor running. It has a certain "chirp" at the end.
I have the video set to unlisted now so anybody who wants to can check it out and give me their thoughts.
Thank you!
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I watch the video finally and wanted to make sure of one thing. Are you referring to the sound we hear after you step on the brakes? If so, that is your solenoid valves engaging. You should be able to feel pulsating sensations on your foot when this sound occurs.
Seems like you're ECU thinks your wheels are slipping on an icy surface so it is engaging one or multiple of the solenoid valves. This exact sound occurs when traction control kicks in when you're trying to climb a slippery or loose Hill. The system is trying to slow down one or multiple wheels so that you have steady forward progress. On the flip side, same system kicks in when you slam on the brakes at speed in order to prevent you from skidding and sliding.
Question is, why does your ECU think you are driving even though you're in park?
We can guess all we want but we need concrete evidence. The way to obtain this evidence is to connect to your ABS ECU via the Techstream software and interrogate that ECU.
If you don't have this software which can be purchased for next to nothing via eBay or some other place, see if you can connect with your local Toyota enthusiasts. Someone might have it in your neck of the woods and offer to connect to your ECU and pull some codes and look at the ABS ECU. Go to the correct section of this forum and find out some local resources.
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