I was driving and randomly my speedometer stopped working. It would jump up a few times but after that it just did nothing. About 15 mins after I noticed that the TCS and check engine light came on. As soon as I got home I turned it off and back on and the TCS and check engine light were off, but the speedo still didn't work...... Any ideas The manual says panel A but what do I check for? Thanks in advance for the help