C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

help-A/C Blower motor control module

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Old Jul 19, 2008 | 02:57 PM
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Default help-A/C Blower motor control module

hi all

after driving today, i shut off the car, and the A/C Blower motor runs on full speed, without key in the lock, all the time..to make the stroy short, the blower control moduel shorted out, and i had +12 Volts on the Motor all the time!

can you tell me, where i can get this part?

the curcuit is STK6994J
Delco 16061602

also Caddy´s and Buicks seem to have this module, 12484912 from Rockauto..

can somebody chime in, confirm, or whatever?

thank you!
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Old Jul 19, 2008 | 03:08 PM
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I had the very thing happen to me this week - '98 Jimmy.

On rare occasions, I have to give the blower housing a rap or 2 to get the fan to go ON.
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Old Jul 19, 2008 | 08:00 PM
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The C4 climate control came from Caddilac and I am sure the motor speed control module is identical to other GM cars. We need someone who knows the cross reference to help us out .
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Old Jul 19, 2008 | 08:12 PM
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Originally Posted by jfb
The C4 climate control came from Caddilac and I am sure the motor speed control module is identical to other GM cars. We need someone who knows the cross reference to help us out .
that would be very helpful...i found out, that some Audi cars used the module, too...
i will call my Audi dealer in monday, hopefully, they can get it....
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Old Jul 21, 2008 | 05:32 AM
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hi all

called my Audi dealer today...

the part is also used in Audi V8, p/n 443 820 523B and its a very rare and expensive part, about 250 Euros....

i will wait, if i find another source, but maybe thats the only way...

greetings
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Old Jul 21, 2008 | 11:48 AM
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Go to www.acdelco.com - look up your Year for the Part # and then use the "Vehicle List" or x-reference section for all the models it works with. The Electronic a/c blower module is used across the line. The only redesign was in '90 when a/c clutch control was moved to the ECM.

Your problem may be an open in the feedback circuit and not a faulty Module. Actual blower voltage is returned to the Processor - for your Year the Programmer. That circuit is protected by a 5 amp fuse. If it opens, the Dilbert's who designed this thing left the blower running at Max, even with the key off. Prior to '90, the fuse was pasted to the firewall to the left of the Evaporator Housing. Sometimes easier to find by following the splice from the blower hot lead up to the firewall. In '90, it was moved to the fuse box and it's usually labled PGM. See your Owner's Manual.
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Old Jul 21, 2008 | 02:46 PM
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I have a used 16061602 that I just tested and it works. If you want it I'd be happy to get $25 plus shipping. I have no idea how much shipping will be to you so you may want to check local first. LMK!
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Old Jul 22, 2008 | 02:02 AM
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Originally Posted by SunCr
Go to www.acdelco.com - look up your Year for the Part # and then use the "Vehicle List" or x-reference section for all the models it works with. The Electronic a/c blower module is used across the line. The only redesign was in '90 when a/c clutch control was moved to the ECM.

Your problem may be an open in the feedback circuit and not a faulty Module. Actual blower voltage is returned to the Processor - for your Year the Programmer. That circuit is protected by a 5 amp fuse. If it opens, the Dilbert's who designed this thing left the blower running at Max, even with the key off. Prior to '90, the fuse was pasted to the firewall to the left of the Evaporator Housing. Sometimes easier to find by following the splice from the blower hot lead up to the firewall. In '90, it was moved to the fuse box and it's usually labled PGM. See your Owner's Manual.
Hi SunCr

i removed the module for testing, and i have zero resistance between the hot wire and the wire that leads to the blower motor...doenst matter, which direction im testing..this with all disconnected..

normally, when IC´s die, the short out..

@Aardwolf..thanks for your great offer, when i dont find this module locally, i hope i can contact you

greetings

Last edited by corvette90; Jul 22, 2008 at 02:17 AM.
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