Climate Control Quit

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Climate Control Quit

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Cadillac Forum >> Cadillac Models >> Cadillac Seville >> Climate Control Quit

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Climate Control Quit - 4/15/2008 11:36:19 PM

afsfuel

Posts: 18
Joined: 4/8/2008
Status: offline

The auto climate control on my '79 Seville suddenly stopped working. Fuses check OK. No fan though. Ideas?

Edward

_____________________________

2004 SRX V8
1979 Seville
1952 MG TD
1999 Miata
2000 Volvo S40 1.9 turbo
2006 Silverado LT 4X4 C/C Duramax-Allison

Post #: 1

RE: Climate Control Quit - 4/16/2008 9:22:50 AM

brougham1

Posts: 369
Joined: 7/5/2006
Status: offline

First thing that I'd be checking on the older cars is the grounds. Ground for ECC power module, ground for CC center, you can disconnect the power lead to the motor and supply 12 volts from battery to check if the motor is fine. Is the ECC display totally dead or just portions of it??

(in reply to afsfuel)

Post #: 2

RE: Climate Control Quit - 4/16/2008 11:03:54 AM

carnut

Posts: 285
Joined: 2/23/2008
Status: offline

This climate control system had a habit of melting the connector at the plug in at the control head. If I remember the large diamter orange wire. To verify you must pull the dash control head out from the dash to inspect the multi wire plug at it rear. If its melted, sometimes you can cut that wire out of the plug and connect it directly to the head. another thing these would do is melt the connector at the hi fan relay. Same scenerio, cut the wires out of their harness and plug them directly into the relay. Dont remember where the relay bank is, but I think behind the glove box? Do you have a factory service manual? I assume you have already put 12 volts to the blower motor to verify it works?

_____________________________

2 1984 Eldos, 1991 Allante, 88 Allante (sold)

(in reply to brougham1)

Post #: 3

RE: Climate Control Quit - 4/18/2008 12:44:27 PM

afsfuel

Posts: 18
Joined: 4/8/2008
Status: offline

Guess I'll just take it to the local AC shop. Too busy running our company to wrench right now...

_____________________________

2004 SRX V8
1979 Seville
1952 MG TD
1999 Miata
2000 Volvo S40 1.9 turbo
2006 Silverado LT 4X4 C/C Duramax-Allison

(in reply to carnut)

Post #: 4

RE: Climate Control Quit - 7/1/2008 9:16:49 AM

rickt7508

Posts: 5
Joined: 7/1/2008
Status: offline

i have the same problem and when i went to unplug the blower the connector was melted..so just remove the plastic connector and directly connect the wires?

(in reply to afsfuel)

Post #: 5

RE: Climate Control Quit - 7/24/2008 10:44:45 AM

retiredron

Posts: 1
Joined: 7/24/2008
Status: offline

My fan quit. There was melted and burnt plastic in the 3 pin connector on the power module in the ac duct. The climate control was inoperable (separate problem). Bad ground connection in the 16 pin connector on top of the instrument control panel. I wiggled the wires and the climate controls went off and on. I cleaned and bent the sockets in the connector. Works now. Easy to get to. Just under the top dash cover, 92 Seville.

(in reply to rickt7508)

Post #: 6