(T) Daily Power Steering Failure - Temperature related?

what I will suggest that if it comes back is to replace the cable disconnecting it to clean the posts might have made it cause a good connection internally the gear box flexes the cable as it vibrates and can cause internal fracturing or damp gets under the plastic and rots the copper .. I have taken to carrying a spare universal earth cable with me just in case I need it to get me home

see why I asked where the alternator was tested

a decent 12v dc rated clamp meter e.g.:

http://dx.com/p/1-5-lcd-handheld-dig...ce-2-aaa-51707
can be a very quick fault finding tool in the right hands