Apple Diagnostics: Reference codes

Use this article to find more information on the codes generated in Apple Diagnostics.

Using the reference code table

  1. Find the definition of the specific Apple Diagnostics reference code and find out the next steps to take to troubleshoot the issue.
  2. For issues you cannot resolve, contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to find out which service and support options are available to you. Make sure you 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 Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.
CNW001
CNW003
CNW004
CNW005
CNW006
There may be an issue with the Wi-Fi hardware.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

CNW007
CNW008
No Wi-Fi networks were detected. Either there are no Wi-Fi networks in range or the Wi-Fi hardware may have 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 Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

NDC001
NDC003
NDC004
NDC005
NDC006
There may be an issue with the camera.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

NDD001

There may be an issue with the USB hardware.

Disconnect all external devices except keyboard, mouse and Ethernet adaptor. Run the test again.

If this code appears again, further troubleshooting may be required. Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

NDK001
NDK003
NDK004
There may be an issue with the keyboard.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

NDL001

There may be an issue with the Bluetooth hardware.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

NDR001
NDR003
NDR004
There may be an issue with the trackpad.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

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. Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

NNN001

A serial number was not detected. 

The computer requires a service. Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PFM001
PFM002
PFM003
PFM004
PFM005
PFM006
PFM007
There may be an issue with the System Management Controller (SMC).

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PFR001

There may be an issue with the computer's firmware.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPF001
PPF003
PPF004
 There may be an issue with the fan.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPM001

There may be an issue with a memory module.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

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 Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPP001
PPP002
PPP003
There may be an issue with the power adapter.

Disconnect the MagSafe power adapter from the computer and the plug socket, 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 Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

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 plug socket. 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 Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPR001

There may be an issue with the processor.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPT001

The battery was not detected.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPT002
PPT003
The battery will need to be replaced soon. It is functioning normally, but can hold less charge than it did when it was new. 

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPT004 The battery requires a service. The battery is not functioning normally, though you may not notice a change in its behaviour or the amount of charge it can hold. 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 starts.

If running Apple Diagnostics over the Internet confirms the issue, contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store. They'll tell you which service and support options are available to you.

PPT005 The battery is not installed properly. Shut down and discontinue use. The computer requires a service.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPT006 The battery requires a service. The battery is not functioning normally, though you may not notice a change in its behaviour or the amount of charge it can hold. You can continue to use your battery before it’s checked without harming your computer.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

PPT007

The battery needs to be replaced. The battery is functioning normally but can hold 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 Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

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 Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

VDH002
VDH004
There may be an issue with a storage device. 

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

VDH005 Unable to start OS X Recovery.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

VFD001 
VFD002 
VFD003 
VFD004 
VFD005 
VFD007

 

There may be an issue with the display.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

VFD006

There may be an issue with the graphics processor.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

VFF001

There may be an issue with the audio hardware.

Contact Apple or take your computer to an Apple Authorised Service Provider or Apple Retail Store to determine which service and support options are available to you.

 

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