My sunroof won't open or close, however it does go up and down. So i imagine that it is not the motor but possibly the switch. i disconnected my battery to clean the terminals if that has anything to do with the problem
Had this problem all you have to do is actually open sunroof with tilt button all the way and then close it with tilt button to reset, then it should work with open switch. If you disconnect battery this happens and you have to reset it this way
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With the ignition switch in the ON or START position, 12 volts is applied to the coil of the power window relay through 7.5A FUSE 12 in the fuse block. Twelve volts flows through circuit breaker 2 and the closed contacts of the power window relay to the sunroof motor. The motor is controlled by the sunroof switch.
My '91 does the same thing. There is a thin metal wind deflector (about one inch wide with holes in it across the front edge of the sunroof opening. It should flip down to allow the glass to close all the way but sometimes it doesn't flip down all the way. Use something flat and thin like a credit card to hold it down while you close the roof. Works for me.
Your motor for the sunroof is out of time. needs to re retimed. There is a procedure to retime it, but I don't remember exactly as to how its done. Would need to look into it as to how EXACTLY its done. I know that the motor needs to be completely taken off the sunroof track and that you need to push the buttons in certian sequence to retime it and I don't have the sequence in my head, but thats the problem. The motor is out of time.
Control Module might have issues.
Remove headliner (quite a job)
Unplug the the power leads to the sunroff motor
Use spare wires to use power from the overhead dome light to the power conections on the motor to get it to move a bit.
If it does not move, reverse the wires. If it sill does not move, then the Sunroof Motor is bad.
Otherwise, Re-connect the power leads to the motor and re-try the sunroof switch to get the roof closed..
Most likely the sunroof control module has a bad diode.
Sounds like the sunroof motor is out of time. Needs to be re-timed. There is a retime procedure, (that I would try first) but I don't remember the whole procedure. if you still have the problem, let me know and i will get the whole thing , from the service manual.