VXDIAG Subaru Cannot be started, activate SSM4 Error Solution


Hi, thank you so much for setup the VXDIAG Subaru SSM3 software for me. But it gave me an error when i tried to run SSM III.

Error: “The SSMIII cannot be started because the SSM4 is not activated. Activate the SSM4 to start the SSM-III”

It also asks an activation code to activate ssm4.

subaru-ssm3-cannot-be-started-1 subaru-ssm3-cannot-be-started-2


If failed to run software, pay attention to these steps when installing SSM3 software for vxdiag vcx plus

1.Click Launcher.exe, first to install SSM3, thenĀ  install SSM4
2.Save Subaru.exe patch to folder C:// or D://, install it on Windows 7 or up operating system. Run Subaru.exe as Administrator
2. Restart computer, click SSM3 to test car after connection device to laptop and car.

Ssm4 Not Activated

Please check the Subaru Patch manual before installing SSM software.


Free download Subaru.exe patch


Disable anti-virus program before running the patch.


Check vxdiag subaru ssm3 installation video guide step by step