I have a 2014 vauxhall astra car has been running fine. Then today code 68 came up and the EPS dash light. After driving home which took 5 mins I turned the engine off and left for 5 minutes when I started the car the lights didn't come back so I drove round the block and it seemed fine. On the 5 minute journey when the lights were on my steering did feel a bit loose. Any ideas??