M1 MacBook Air trackpad: no haptic feedback, ADP000

PavanGavit wrote:

Title: M1 MacBook Air Trackpad Works Normally but Has No Haptic Feedback (Apple Diagnostics: ADP000)

FYI, unfortunately a passing diagnostic result is meaningless when troubleshooting issues.

What I've already tried

Verified Force Click and haptic feedback•  is enabled.

Did you try toggling this setting off? Reboot the laptop, then enable this setting once more.

* The trackpad physically moves when the Mac is powered off (which I believe is normal), but when the Mac is on, there is no haptic click at all.

FYI, when the laptop is fully powered down, then the Trackpad will not provide any feedback at all. It will seem like a solid non-movable object.....the same as if you pressed your finger/thumb on the palmrest or any other hard surface. If the Trackpad feels like it is "moving" or clicking (movement not sound), then the laptop is not fully powered off.

If so, were you able to fix it without replacing the trackpad or Taptic Engine?

I'm looking for any additional troubleshooting steps or workarounds that I may have missed before considering a hardware repair.

Perhaps you have some third party software installed which is interfering with the normal operation of macOS. Try booting into Safe Mode to see if that makes any difference. Try booting into Recovery Mode to see if Haptic Feedback is working although it may be a bit more difficult to test some aspects of the Trackpad. It is also possible Recovery Mode doesn't even support Haptic Feedback options. If Haptic Feedback seems to be working with either option here, then it indicates you most likely have some sort of issue with third party software, or possibly a corrupt preference file.

You can try creating a new macOS user account. Log out of your current user account, then log into the new user account. If the issue occurs with the new user account, then you have exhausted non-hardware possibilities.

If the Trackpad is working as expected with the new user account, then perhaps you have an issue with a login item or a configuration issue or corrupt preference file.

You can try deleting the Trackpad preference file. Here is one I found on my system:

~/Library/Preferences/com.apple.preference.trackpad.plist

After deleting the file you will need to log out of your current user account. Then log back in so it will create a new default preference file.

Hi,

An ADP000 reference code in Apple Diagnostics means no hardware issues were found, indicating your M1 MacBook Air trackpad issue is likely a software bug or a temporary firmware glitch. Because modern Mac trackpads don't physically click, the "click" feeling disappears when haptic feedback drivers stop communicating.