MacBook Pro 13" (2019) | I can't access Hardware Diagnostics! | Stuck on choosing a Wi-Fi network

Make sure to try your USB-C to Gigabit Ethernet Adapter in another USB-C port, especially on the other side of the laptop if it is a 4-port model just in case a USB-C port(s) has an issue.

Unfortunately I have seen cases where third party USB-C to Gigabit Ethernet Adapters may not always work for booting into the Apple Diagnostics or Internet Recovery Mode. I actually use two Apple adapters for reliability reasons, but I don't think Apple is selling the Apple Thunderbolt2 to Gigabit Ethernet Adapter any more (to be combined with the Apple USB-C to Thunderbolt2 Adapter).

For a 2019 model you may want to try a DFU Firmware Revive which resets the T2 security chip & system firmware. Apple says this may be necessary if there are problems reinstalling macOS, but neglects to mention what type of installation issues. Since the Apple Diagnostics also utilize the same underlying system framework for accessing Internet Recovery Mode....it may be worth a try. Unfortunately this does require access to another working Mac currently running macOS 15.x Sequoia.

Keep in mind some of the common issues listed by @Grant. They don't all involve WiFi. Some involve your home network including hubs, router, and modem or ONT, or perhaps even your ISP or local Internet.

Why are you trying to run the Apple Diagnostics? It would seem you are trying to identify or fix some other issue with this laptop. That other issue may be the same reason why you are having trouble accessing the Apple Diagnostics. It may be worthwhile to run the third party app EtreCheck and post the complete report here so we can examine it for possible clues to try & solve the real problem with your laptop instead of trying to run the diagnostics which rarely detect actual hardware issues (it is nice when it does, but the odds are against it).

How to use the Add Text Feature When Posting an EtreCheck Report - Apple Community

In Internet Recovery, as well as diagnostics, these low negative thousands error messages indicate that your provided Wi-Fi Network is inadequate in some fashion, and cannot be used (for this purpose) in its current state.

Common problems include:

Hidden Network-name

required use of a proxy server to get Internet access

required use of a login page to get Internet access

Use of a login server or certificate to get Internet access

Use of PPPoE in the Mac to get Internet access (typically only applies to DSL)

Use of Fixed IP address rather than good old DHCP

Variance of the time by more than five minutes

Failure of Router to provide workable DNS server addresses, or providing 0.0.0.0 [may produce -2002f]

If you have an Ethernet port, you may in some cases be able to move your Mac close to the Router and connect to the Router using Ethernet.

The higher the number, the more obscure the problem.

After you choose a network, it can easily take 20 minutes to download the required recovery or diagnostics software before any testing can begin. if the globe is spinning and no error messages, it's working on it.

GodspeII wrote:

if I can’t use it solve the issue of the error code -2002D I’m having then it’s pointless to focus in it.

You can try power cycling your router. Wait at least 5 minutes for the router to finish booting. Then try the Apple Diagnostics again to see if that makes any difference.

I’m trying to access the Hardware diagnostics because I’m solving the issue of high power consumption on this machine which is leading to high temperatures.

I have another post open about this topic for 2 days, and after applying one single method, which is simply using ONLY Safari as my web browser in this machine, I was able to solve the issue of having around 24-41 Watts of consumption and temperatures ranging between 85-94 degrees.

So, basically, I have been trying to find the cause and a solution for the high power consumption and higher temperatures, but unfortunately there’s nothing wrong with my machine in terms of Software, so I’ve been exploring the angle of Hardware but all parts seem to be on top shape.

I highly recommend you take @Grant's advice in your other thread to run the third party app EtreCheck so we can examine its report for possible clues. As for software issues, most users are too close to their system to see potential software issues or configuration issues. It is best to have some other experienced independent eyes on the system report to see if anyone notices anything that may be contributing to the problem. There are a lot of regular forum contributors with a wide range of experience who may notice something that no else will see. The EtreCheck report also contains some performance metrics & log summaries that can also provide us with some possible clues. It is best to run EtreCheck after you experience the issue as it would contain the most accurate information in the report.

Here is a link to @Grant Bennet-Alder's post in your other thread suggesting the use of posting an EtreCheck report:

MacBook Pro 13" (2019) | = High Power (Wa… - Apple Community

If you do decide to run EtreCheck and post the report to the forums, please post it to the other thread I linked here.

<< It doesn't work ... >>

That's way too vague to be helpful.

We can not see your computer or have any concept of what happened unless you provide the details about how things unfolded over what period of time.

Command-D is not a part of this, its Option-D

Use Apple Diagnostics to test your Mac - Apple Support