Car blow heat from the vent but not from the floor board and defrost vent.
Jan 22, 2019 at 5:37 PM
Defroster not working
1991 CADILLAC FLEETWOOD BROUGHAM
NALLS
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Good evening
The most common cause for this is the programmer for the AC. It is the box behind the glove box that has the rod coming out that moves the door for air flow.
Can you hear or see it moving when you command defrost and floor?
Roy
The most common cause for this is the programmer for the AC. It is the box behind the glove box that has the rod coming out that moves the door for air flow.
Can you hear or see it moving when you command defrost and floor?
Roy
Images (Click to enlarge)
Jan 22, 2019 at 7:23 PM
No,I see the actuator moving for heat and air. And also a black round part behind a door
Jan 22, 2019 at 7:29 PM
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OK, good chance the programmer is not commanding the door positions to change.
Roy
Roy
Jan 22, 2019 at 8:21 PM
So the programmer is going bad. Will disconnecting the battery to reboot help?
Jan 22, 2019 at 8:25 PM
No, there is no such thing as a reboot.
Removing the battery cable will have no effect on this issue.
Roy
Removing the battery cable will have no effect on this issue.
Roy
Jan 22, 2019 at 8:32 PM
So what is the name of the part I need to look for?
Jan 22, 2019 at 8:34 PM
Ac programmer. I showed you the part from rock auto
Roy
Roy
Jan 22, 2019 at 8:37 PM
My year doesn't call for a programmer. 91 cadillac brougham 5.7 engine
Jan 22, 2019 at 8:48 PM
My bad found it
Jan 22, 2019 at 8:53 PM
Yes, they changed that system in 93.
Roy
Roy
Jan 23, 2019 at 4:51 AM
I also noticed I'm pulling a code 132 and 141
Jan 23, 2019 at 5:02 AM
Where did you get those codes from?
Roy
Roy
Jan 23, 2019 at 5:04 AM
From my ecc
Jan 23, 2019 at 5:05 AM
Did they have a E or F in front of them?
Roy
Roy
Jan 23, 2019 at 5:22 AM
Neither just numbes
Jan 23, 2019 at 5:52 AM
Error I mean 140 and 132
Jan 23, 2019 at 5:54 AM
They are not codes.
When you hold the off and warmer buttons at the same time, it will go into diagnostic mode.
The codes with start with the letter E and then numbers. When that is completed it will list F and then numbers.
When that is complete then it will display 7.0.
Roy
When you hold the off and warmer buttons at the same time, it will go into diagnostic mode.
The codes with start with the letter E and then numbers. When that is completed it will list F and then numbers.
When that is complete then it will display 7.0.
Roy
Jan 23, 2019 at 5:58 AM
My car don't read out like that
Jan 23, 2019 at 6:13 AM
Is this the control head in your car?
Roy
Roy
Image (Click to enlarge)
Jan 23, 2019 at 6:22 AM
Sure is
Jan 23, 2019 at 6:29 AM
OK, then follow the instructions I sent you and the on-screen picture I sent and take a screenshot of your results and upload it here for me to see.
Roy
Roy
Jan 23, 2019 at 6:32 AM
Readings
Images (Click to enlarge)
Jan 23, 2019 at 10:20 AM
They are not codes. Did they appear right after putting it into diagnostics?
This may be the programmer sending bad info. With the replacement, it should show the correct format.
Roy
This may be the programmer sending bad info. With the replacement, it should show the correct format.
Roy
Jan 23, 2019 at 10:23 AM
Yes once I pressed both buttons it started showing these codes. So are you saying the programmer may solve this ?
Jan 23, 2019 at 10:30 AM
Yes, that is the incorrect format.
The programmer controls this.
Roy
The programmer controls this.
Roy
Jan 23, 2019 at 10:49 AM
Ok I'll try that
Jan 23, 2019 at 11:05 AM
Sounds like a plan
Roy
Roy
Jan 23, 2019 at 11:14 AM