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Old 05-23-2006, 11:13 AM
Registered User
Join Date: May 2006
Posts: 19
Blower motor

1990 420SEL

I Replaced the Blower Motor, the connector 3 pin ( has 4 Slots or holes)I had to open it up repair daman
ged connector, the other wires came out and I don't know where they go back to, the plug is numbered 1-4 (red, Black, Yellow. Help!!

C. Kimble
1990 420 SEL
1992 190E
1986 300E

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Old 05-23-2006, 11:42 AM
GVB GVB is offline
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Join Date: May 2006
Posts: 178
So, you replaced the HVAC blower motor for cabin air? Right? If so, you should only have two wires going to it, a red and brown or blue.
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Old 05-23-2006, 12:07 PM
Ron in SC's Avatar
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Join Date: Aug 2003
Location: Charleston, SC
Posts: 1,095
I took the photo below of my plug for the blower motor, I have the evap case out for evap and elements, the car is a 1992 300 TE. I don't know if your plug is the same or not. It sounds like you have the same number and colors for wires.
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Blower motor-plug.jpg  
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Old 05-23-2006, 12:14 PM
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
Yellow wire is variable power from CC to trigger the regulator...........

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