I guess that we all check our towbar and electrics as we use them quite regularly, which is just as well because the towbar and associated electrics are now to be included in the mot test.
Couple of links for interested parties;
Towbar section
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Towbar electrics here
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Only the 13 pin euro socket is tested for function (even though an adapter is supplied with the test kit so it could be used to do the 7 pin, so what's the betting that will come some time in the future)
You do not have to have electrics fitted.
Couple of links for interested parties;
Towbar section
[You must be registered and logged in to see this link.]
Towbar electrics here
[You must be registered and logged in to see this link.]
Only the 13 pin euro socket is tested for function (even though an adapter is supplied with the test kit so it could be used to do the 7 pin, so what's the betting that will come some time in the future)
You do not have to have electrics fitted.