"I pull the yellow and white plug the drain went down to .03A which I understand from this forum its normal drain amp"

that is what you found. plug one in and the the other one, any differences?

For what are the plugs?

white connector X610 'A'
1-4 stepper motor fond area
5 heater sword
6 aux fan
7 rear window heater relais
8 climate control relais
10 NC
11 NC
12+F20 (30)
13+F20 (30)
14 - 17 stepper motors for air distribution (recirculation)
18 light switch LED
19 light switch LED
20 TXD
21 water valve left side
22 aux water pump relais K8
23 water valve right side
24 front window heating relais K8
25+F20 (30)
26+F20 (30)

yellow connector 614 „D“

1,2,3,4 legroom stepper motor right
5 MPX button
6 MPX button left
7 MPX defrost
8 MPX button right
9 speed signal
10 RDX
11 button rear window defogger/defroster
12 MPX button recirculation
13 MPX button aircon
14, 15, 16, 17 fresh air stepper motor right
18, 19, 20, 21 mixing flap stepper motor right
22 NC
23 NC
24 NC
25 NC
26 NC
--------------------------
so either one of these which you have to check, or the IHKA module itself
all pins
If you have a spare IHKA module, that is the easiest to test. ron4cow has one as far as I remember.

http://www.bimmerboard.com/forums/posts/244793/

I would first try to resolder the IHKA module, open it and have a look.

E32 750iL 11/88, E32 750iL Highline 03/90
7 series Tech Tips

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