Do you have any messages on the instrument cluster for example immobolizer messages? If you have a second key, try using the other key to see if you have an issue. If you have an issue with both keys then you need to have the whole network scanned. OBD2 scanners only scan engine management so you would need something more advanced to scan the central electronic module for any immobolizer codes. Did this problem happen from one day to another?
Jan 27, 2012 at 5:31 AM