| Climate control 1995 420E
I just got this 1995 E420 and there are a few things wrong. The Blower moter only runs on slow. I have checked the fuse F15 and it is good. I have changed out the climate control module with no improvement (part from used car ????) I was trying to check everything else before I go at the blower motor and blower module. I can access the plug X64 in back of the brake booster. Now my question is what signal is coming from the control module N22? Is it a 0-12V signal or a resistance? I can connect the battery to pin 2 and ground pin 1. If I could control the signal on pin 3, I could tell quickly if I need to remove the wiper and motor, or if the problem is in the wiring. | 
