[s-cars] No heat diagnosis please

[Sam Clarkson]

Hi all
93 S4
No Heat, I pulled the codes; 08.7 temp regulator flap sporadic block  
and 11.7 central flap sporadic block.
I've pulled out the temp control motor assembly no movement as I  
cycle through the temp range. The arms all move freely and smoothly  
with the TCMA out and heat comes on/off when moving them manually.  
The motor in the TCMA goes fine in both directions when directly  
connected to a battery.
Any advice as to what's next to test.
The potentiometer? How?
The supply to the TCMA? How?
How do I clear/reset the codes?
Getting the TCMA out is a BITCH on a right hand drive car, just in  
case you care!



Sam Clarkson