Pulsing lights in dash

If you have a light on the dash, you should get it scanned. Get code and post it. If you don't, disconnect the battery for 30 seconds, then hook back up.

Disconnect the negative cable for a few about 15 minutes. The Reconnect it and let the ECU(Engine Control Unit) reprogram itself. Sometimes this works. But sometimes it does not and you will have to see a professional to check the ECU to see if there are any electronic problems. Try to take it to a good mechanic and see what they are doing. Just watch ...if you know anything about cars or you don't will not matter They will get nervous anyway and not try to cheat you. Just ask them to notify you when they will work on your car.

hi kathy better watch out doing 115mph every where could get you a ticket lol.now being serious this sounds like a computer problem disconnect the battery for a while 10/15 minutes then see if this helps sometimes it sets everything back to factory settings,if this does not help it might pay to take in to a dealer
with the computer to check and set yours ,cheers i hope this helps pete

Check your fuses

Could be a ground problem , do you know about automotive electrical circuit's ? Has a B+ voltage side an a ground side to compleat the circuit back to the negative side of the Battery ? Looking at wiring diagrams for the affected system's i see they share a common ground point . G 201 ,do you know about body grounds ? I would look for a loose connection . G201
Below the IP, left side of the steering column

u got bad coil

This problem drove me crazy for 2 weeks. Then the car just stopped running. It would turn over but it would not fire. I replaced the crank and camshaft sensors. That did nothing. I replaced the ignition switch and the car started right up. So if your dash indicator lights start doing a light show for you and your gages jump around or just stop working. Try replacing the ignition switch.

your altonator is faulty try replacing it or recondition it at a repair centre it happned to my car its the
altonator bushes that have worn out

My guess is that the speed sensor has gone out or the wires that go to it have been knocked off somehow.

i had the same problem when i had a new oxgen sensor put in i did find out that it is in the dash behind your speedometer i tried to do it myself but i got the dash off but i couldnt get the rest off so i just left it untill i can get a diagram to show me the rest of the way i hope this helped a little.