1998 1999 ECC control unit compatibility question Topic is solved

[AKJeeper]

Climate control changes

In late 1998 the damper and temp control modules were replaced by a single motor (9134729)doing both functions on the driver side. This was used 1999-2000 then replaced on P2

Edited to 1999-00

Does anyone know if the ECC unit (the part in the dash w/ the knobs) from a '98 is compatible with a '99-'00?

[abscate]

I don't think so. ME7 (used on 1999) has completely different management of climate control than earlier.

[bmdubya1198]

Climate control changes

In late 1998 the damper and temp control modules were replaced by a single motor (9134729)doing both functions on the driver side. This was used 1999-2000 then replaced on P2

Edited to 1999-00

Does anyone know if the ECC unit (the part in the dash w/ the knobs) from a '98 is compatible with a '99-'00?

Not sure. My ECC unit worked in my cousin's '99 when we were trying to diagnose the issue with it. His damper on the driver's side is shot.

[abscate]

And FCP reports, in fact, they are the same

Screen Shot 2017-05-24 at 3.45.27 PM.png (109.45 KiB) Viewed 764 times

[abscate]

This is kind of surprising since mid 1999 year, the damper went to the one motor style - but apparently the ECC can figure out how to work with both?

[BEJinFbk]

This is kind of surprising since mid 1999 year, the damper went to the one motor style - but apparently the ECC can figure out how to work with both?

Are you talking about MCC or ECC?
MCC has always been just the recirc damper.

[abscate]

ECC for the mid year damper change.