Cadillac Repair: 1993 Cadillac Eldorado Sunroof Auto-close, cadillac eldorado, electrical schematics

Question
1993 Eldorado, 167k miles, 4.9L, Daily Driver.  The battery was recently disconnected for a few minutes.

Up until about 3 weeks ago, my sunroof would automatically close after about 4-6 seconds of the engine shutdown or key removal from the ignition switch.   Now, the sunroof stays open after engine shutdown/key removal.

Is the sunroof auto-close programmable to auto-close or stay open?  Would my recent battery disconnect cause a change in the sunroof's behavior?  Is there something to reprogram to activate the auto-close? If not, what controls the sunroof's auto-close and how can I troubleshoot?

Answer
There are a couple of test procedures that you must do to locate the faulty component.

If you want to try and diagnose it by yourself using a volt/ohm meter I can e-mail you the electrical schematics and diagnostic instructions.

contact me at:

[email protected]


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