I don't know Rovacom but Nanocom sounds like a better option to me, only the small screen size is a negative, it does plug in via a cable or you would not be able to see the screen. You could always sell the Rovacom to offset the cost of a Nanocom.
I have a Faultmate which will run stand alone. Never used t like that, the display is too small, I use a 10" tablet which will run off a USB socket if the battery is low.
The V4 only works on petrols and not on diesel engines
Careful how you plug and unplug the Nanocom, if it's not at the home screen you can do damage. It's likely the problem is not the ECU's themselves but connections.OK, Nanocom delivered ( at great cost )
Registered it, hooked it up, imported all the various module codes, all seems to work ok BUT, yet again, there a some modules it cant/wont communicate with, BECM works fine, as does the EDC, doesn't connect to ABS, SRS, or EAS, & these are the ones that show faults on the message centre.
Plugged & unplugged many times, these very same faults go back on many years of old MOTs so might there be something more serious?
Not sure what to look for next.
Could the actual ECUs be at fault? Is there a test?
True
They are your seat belt reel pretensioner plugs. Disconnected battery before unplugging and then cut the plugs and solder the wires back together. If there has been leaking from the heater rad or water ingress form the pollen filters almost a guarantee they're corroded somewhat
Could be any reason why some wires are not in their appropriate sleeving
Look for corrosion between the pins and for wires that are just hanging on to the pin s by the plastic sheath.
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