Cadillac Repair: 89 deville 4.5 litre no start, electrical schematics, radiator cooling fans

Question
Hi,

I have a 89 Cadillac Deville, 4.5 litre 273 cui.
Recently it began draining the battery after it sat for a day or two.  The automatic level control comes on when the key isn't in the ignition , and the radiator cooling fans engage as soon as the key is in the ignition. Also engaging when the key is not in the ignition.  Took a jump once after drain. About 2 weeks pass now it is drained again.
Replaced battery due to old one not takeing a charge.It was a 540 cca, I replaced it with a 770 cca.  Now all it does is click when I turn it over.  Was able to have some check for codes with a handheld diagnostics computer.  Got a code 12 saying NO SPARK PULSE TO DISTRIBUTOR.
Could I have a faulty ECM ? If so, is it inside the Distributor or under glove box ?
Had the BCM replaced less than a year ago and a short repaired related to the bcm too.
Thanx for any help.


Answer
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