Loss of power steering after disconnecting battery

Semiret

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Hope you can help. Battery disconnected whilst working on car but when connected the red power steering warning light showing and no power steering. Disconnected battery in past and only the amber warning light showed but had power steering. Strange that on this occasion I have lost all power steering. Fuse OK. Power steering was fine before this.
Found this in a VW Service Manual;
The steering system recognises and reacts to undervoltage. If the battery voltage falls below 9 volt, the steering assistance is switched off and the electromechanical power steering warning lamp illuminates red. If there are brief voltage dips below 9 volt, the electromechanical power steering warning lamp illuminates yellow. Does this mean that if you disconnect the battery, the power steering assistance is switched off? If so, would reconnection of battery turn it on or does this have to be done by diagnostics? Car undriveable for me (pensioner) so if anybody has VCDS in East Hampshire PO8 willing to diagnose please get in touch. Many thanks
 
Yes as above, you need to drive it down the road & do a few turns left/right, it should be fine then.
 

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