Originally Posted by SilverSport
I suggest checking all the other connections at the TIPM.
^^^ Try this.
Next, unhook your battery completely for a little while (overnight won't hurt it, but should only take 10 mins or so). Hook it back up and see if that does anything.
If neither of those works, check your ground wire on the ECU. If it's loose it can cause electrical mayhem that sounds a lot like what you're experiencing. I woulda recommended this one first, but the other two are easier, so... The ECU's the thin silver thing by your windshield wiper refill tank. Ground wire is attached to the inside screw holding it in place. Photo below...
See the hint of a bar code on the back of it? The screw that holds the ground wire will be on the far left-hand side. The ground wire has a metal loop that should be tightened down with the screw. Sometimes it can pull loose.
I suck with electricity, so if you get fried, it wasn't my fault...