Sort of my car, sort of not. Partners Corolla. Factory fit parking sensors were ridiculous, way out of calibration (flat-lining when still 1m from an object, starting to beep at quite a rapid frequency when 2m away) and just far far too loud. As a result she's pretty much stopped reversing as they make her 'nervous' and distract her.
Spent ages looking for a way of re-calibrating them or changing the frequency or at the very least the volume. Failed miserably so just proceeded to remove the speaker cable. Didn't realise I'd have to dismantle the entire boot to do it, naively thought that it would run through the headunit so pulled the whole centre console and half the dash out first.... Typical!
Remove all the boot trim, the boot seal and pull the liner away:
Then you can see the annoying blighter, yank the speaker cable out and find somewhere safe for it to sit (luckily fits beneath one of the trim pieces):
Then you can get worried by the rust forming beneath the boot seal:
That will definitely need cleaning up too... Last re-assemble and rejoice at blissful silence when reversing. Quite why you'd need parking sensors on a compact hatchback I don't know. I then swapped out the pollen filter which was well past its prime - covered in leaves and absolutely black.
