Using the reference code table
Testing conducted by Apple in November 2019 using pre-production 2.5GHz 28-core Intel Xeon W–based Mac Pro systems with 384GB of RAM and dual AMD Radeon Pro Vega II Duo graphics with 64GB of HBM2 each; and shipping 2.3GHz 18-core Intel Xeon W–based 27-inch iMac Pro systems with 256GB of RAM and Radeon Pro Vega 64X graphics with 16GB of HBM2.
- Find the definition of the specific Apple Diagnostics reference code and learn what next steps are needed to troubleshoot the issue.
- For issues you cannot resolve, contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to find out which service and support options are available. Be sure to share the Apple Diagnostics reference code with Apple or your service provider. If you plan to visit an Apple Retail Store, make a reservation at the Genius Bar (available in some countries and regions only).
Reference Code | Code Definition | Next Steps |
---|---|---|
ADP000 | No issues found | No issues found. If you think you have a hardware issue, contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
CNW001 CNW003 CNW004 CNW005 CNW006 | There may be an issue with the Wi-Fi hardware. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
CNW007 CNW008 | No Wi-Fi networks were detected. Either there are no Wi-Fi networks in range, or the Wi-Fi hardware may be having an issue. | Run the test again in range of a Wi-Fi network. If this code appears a second time, further troubleshooting may be required. Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
NDC001 NDC003 NDC004 NDC005 NDC006 | There may be an issue with the camera. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
NDD001 | There may be an issue with the USB hardware. | Disconnect all external devices except keyboard, mouse, and Ethernet adapter. Run the test again. If this code appears again, further troubleshooting may be required. Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
NDK001 NDK003 NDK004 | There may be an issue with the keyboard. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
NDL001 | There may be an issue with the Bluetooth hardware. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
NDR001 NDR003 NDR004 | There may be an issue with the trackpad. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
NDT001 NDT002 NDT003 NDT004 NDT005 NDT006 | There may be an issue with the Thunderbolt hardware. | Disconnect external Thunderbolt devices and run the test again. If this code appears a second time, further troubleshooting may be required. Mac os x 10.14 download. Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
NNN001 | A serial number was not detected. | The computer requires service. Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PFM001 PFM002 PFM003 PFM004 PFM005 PFM006 PFM007 | There may be an issue with the System Management Controller (SMC). | How to download saber plugin after effects mac. Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PFR001 | There may be an issue with the computer's firmware. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPF001 PPF003 PPF004 | There may be an issue with the fan. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPM001 | There may be an issue with a memory module. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPM002 PPM003 PPM004 PPM005 PPM006 PPM007 PPM008 PPM009 PPM010 PPM011 PPM012 PPM013 PPM014 PPM015 | There may be an issue with the onboard memory. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPP001 PPP002 PPP003 | There may be an issue with the power adapter. | Disconnect the MagSafe power adapter from the computer and the power outlet, then reconnect. Run the test again. If this code appears a second time, further troubleshooting may be required. Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPP007 | The power adapter was not tested. | There may be an issue with the power adapter, or it may not be connected. To test the power adapter, reconnect it to the computer and the wall outlet. Run the test again. If this code appears a second time, further troubleshooting may be required. Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
How to download backyard baseball 2001 on mac 7. PPR001 | There may be an issue with the processor. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPT001 | The battery was not detected. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPT002 PPT003 | The battery will need to be replaced soon. It is functioning normally, but holds less charge than it did when it was new. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPT004 | The battery requires service. The battery is not functioning normally, though you may not notice a change in its behavior or the amount of charge it holds. You can continue to use your battery before it’s checked without harming your computer. | You should first confirm this issue by running Apple Diagnostics over the Internet, which uses the latest diagnostic information. To do this, turn off your Mac by choosing Shut Down from the Apple () menu. Then press the power button to turn on your Mac. Immediately press and hold Option-D until Apple Diagnostics begins. If running Apple Diagnostics over the Internet confirms the issue, contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store. They'll tell you which service and support options are available. |
PPT005 | The battery is not installed properly. Shut down and discontinue use. The computer requires service. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPT006 | The battery requires service. The battery is not functioning normally, though you may not notice a change in its behavior or the amount of charge it holds. You can continue to use your battery before it’s checked without harming your computer. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
PPT007 | The battery needs to be replaced. The battery is functioning normally but holds significantly less charge than it did when it was new. You can continue to use the battery until you replace it, without harming your computer. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
VDC001 VDC003 VDC004 VDC005 VDC006 VDC007 | There may be an issue with the SD card reader. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
VDH002 VDH004 | There may be an issue with a storage device. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
VDH005 | Unable to start OS X Recovery. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
VFD001 VFD002 VFD003 VFD004 VFD005 VFD007 | There may be an issue with the display. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
VFD006 | There may be an issue with the graphics processor. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
VFF001 | There may be an issue with the audio hardware. | Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. |
- Just to answer the question of how to get AHT and assuming your Mac is indeed a 13inch mid-2010 MacBook Pro your model is MacBookPro7,1 and for that model you can download AHT from Apple with the link below and follow my steps below to put it on a flash drive.
- Diagnose problems with your Mac. Apple Diagnostics and Apple Hardware Test are tools you can use to diagnose problems with your computer’s internal hardware, such as the logic board, memory, and wireless components. You may be able to start your Mac with Apple Diagnostics or Apple Hardware Test, even if it doesn’t start using macOS.
- Testing conducted by Apple in November 2019 using preproduction 2.5GHz 28-core Intel Xeon W-based Mac Pro systems with 384GB of RAM and dual AMD Radeon Pro Vega II Duo graphics with 64GB of HBM2 each; and shipping 2.3GHz 18-core Intel Xeon W-based 27-inch iMac Pro systems with 256GB of RAM and Radeon Pro Vega 64X graphics with 16GB of HBM2, as.
- In this video, I show you how to run the Apple Hardware Test. This test is for Macs older than June of 2013. IMPORTANT: If your Mac was released after June 2.
Mac can be conveniently purchased from the Apple store and most of configuration allows you to upgrade the memory so that you don’t need to open the case and take the risk in using an incompatible memory which would cause system lockups.
The only thing is the upgrade from Apple store cost a lot more money if compared to the one that it purchased from a computer store. For example, an additional 2GB of memory cost $50 at Apple Store while it only cost less than $10 if you search in Pricewatch. If you’re willing to take the risk in adding extra memory in your Mac either to save money or perhaps you have a few lying around, it is best to run a memory test to make sure that the RAM is fully compatible and won’t make your Mac unstable.
Here we suggest 3 different methods to easily run a memory test on your Mac OS X including the latest Mountain Lion 10.8.
1. RemberRember is actually a GUI for the popular command line memory testing tool called Memtest OS X. Instead of typing commands in terminal, you can run the test by clicking a button. You are able to test a selected amount or all of the memory, specify the number of times the tests should run and also viewing of the log. Rember includes Memtest OS X in the package so there is no need to manually download and install the memtest. Running Rember will show a table displaying the detected memory on your Mac. Select the amount of memory to test, number of loops and click the Test button to start checking the memory. When the tests is finished, Rember will show the test results.
Rember runs in Mac OS X which means that not all of the ram can be tested due to a portion of RAM being reserved for housekeeping.
Download Rember
2. Memtest86+
If your Mac has a SuperDrive, you can burn the pre-compiled bootable ISO image of the Memtest86+ and boot up the Mac with the disc. Just press and hold the C key when starting up Mac to boot from the disc.
The good thing about Memtest86+ is it runs by itself without relying on the operating system, giving you a more accurate memory test result.
Download Memtest86+
3. Apple Hardware Test
This is the recommended way by Apple to test your memory using their diagnostic tool. If you have an installation disc, insert the disc, restart your Mac, press and hold the C key. Select the language for the Apple Hardware Test and click the Test button to start testing. You can also tick the “Perform extended testing” option which would perform a more thorough test that takes considerably more time to complete. On the latest Mac OS X Mountain Lion, the Apple Hardware Test is already pre-installed and it doesn’t come with an installation disc. Simply boot up, press and hold the D key to start the Apple Hardware Test.
You can also see the amount of memory installed on your Mac at the Hardware Profile tab to confirm that the memory is correctly installed and detected. There are some Apple Hardware Test images that can be downloaded for older models. Do note that the Apple Hardware Test images are machine specific meaning that you cannot use the iBook version on a Mac Mini.
Download Apple Hardware Test
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‘Closing all apps’ is an option which can be set or disabled in the Rember preferences.
ReplyI’m trying to test DRAM one bank at a time in mid-2010 Mac mini with 2 banks of 4GB Kingston DRAM each.
Rember run overnight on max cycles (255) showed when both banks were full (8GB total), there was a DRAM failure. But run overnight on max cycles (255), Rember is so slow it’s completed less than 30 cycles. I tried this twice.
Is it not possible to check one 4GB stick at a time? (Mid-2010 Mac mini standard RAM is 1GB module in each bank for total 2GB.)
ReplyI have several DDR3 DIMMs I want to install, but the memory timing is not printed on them. Is there an app for Macs that can tell you what the timing is on installed DIMMs?
ReplyRember doesn’t shut down existing programs… you do that yerself
ReplyApple Hardware Test Mac Pro 2008
Rember is an amazing app! In regards to the comment above:
it closes all windows because to free-up whole RAM memory for tests.
It’s understandable that you must save your work before you open any diagnostic app.
It’s understandable that you must save your work before you open any diagnostic app.
Works great on latest 2019 iMac where Memtest failed and Apple Diagnostic Tool is a JOKE
ReplyRember
I ran this app and it closed all open windows and running apps without asking or warning me. That is bad software. Who knows what data I lost as a result, let alone time in reopening what I can remember was running. memtest does not do this.
ReplyApple Hardware Test Mac Pro
Hope this works well, thanks!