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

help-A/C Blower motor control module

Thread Tools
 
Search this Thread
 
Old Jul 19, 2008 | 02:57 PM
  #1  
corvette90's Avatar
corvette90
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
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!
Reply
Old Jul 19, 2008 | 03:08 PM
  #2  
schrade's Avatar
schrade
Safety Car
 
Joined: Oct 2007
Posts: 3,816
Likes: 0
From: :45 minutes from everywhere / E-I-E-I-O
Default

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.
Reply
Old Jul 19, 2008 | 08:00 PM
  #3  
jfb's Avatar
jfb
Team Owner
20 Year Member
 
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Default

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 .
Reply
Old Jul 19, 2008 | 08:12 PM
  #4  
corvette90's Avatar
corvette90
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
Default

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....
Reply
Old Jul 21, 2008 | 05:32 AM
  #5  
corvette90's Avatar
corvette90
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
Default

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
Reply
Old Jul 21, 2008 | 11:48 AM
  #6  
SunCr's Avatar
SunCr
Le Mans Master
10 Year Member
 
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Default

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.
Reply
Old Jul 21, 2008 | 02:46 PM
  #7  
Aardwolf's Avatar
Aardwolf
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2004
Posts: 13,966
Likes: 710
From: WI
Default

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!
Reply
Old Jul 22, 2008 | 02:02 AM
  #8  
corvette90's Avatar
corvette90
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
Default

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.
Reply

Get notified of new replies

To help-A/C Blower motor control module

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer




All times are GMT -4. The time now is 11:51 AM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE