I have recently bought a Peugeot 206 cc and it seems fine on journeys of 10 miles but now 3xs after short journeys I have come back to car and twice when trying to start it has said Imobilizer fault and therefore would not start. I have had to lock and unlock car again and then it worked. The other time it said air bag off, then air bag fault, then anti-pollution fault - these flash on and off. I am wondering if this a battery or wire fault rather than the actual faults showing if that makes sense?