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Discussion Starter · #1 ·
my caddy's ecc doesnt work. i cant turn off my a/c or anything. the a/c still works but it only blows through the top winshield vents. does anybody know y? i cant enter the diagnostics either to get the codes of it. i even unplugged the ecc and the a/c still keeps on blowing through the top vents. do i need a new one?
plz hlp. thanx
whats a mode motor?
 
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Discussion Starter · #2 ·
Don't think the 89 has a mode motor. Most likely is still vacuum driven with defrost being the default position. Check for vacuum leaks in the engine compartment particularly the little black ones going through the firewall.
 
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Discussion Starter · #3 ·
Don't think the 89 has a mode motor. Most likely is still vacuum driven with defrost being the default position. Check for vacuum leaks in the engine compartment particularly the little black ones going through the firewall.
 
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