Ok, so the the guys that designed this schematic, Was he doing THC???
I see no Positive Voltage to run the Mirror Motors? I see Grounds? No Plus Voltage. So where does the Motor get its Positive Voltage?

Also The Block diagram shows the logic chip with 5 Volts on one connection. Are these motors a Stepper type? Or are they a Standard motor.

And... Are the 12 motors or are they 5 Volt motors?

I can read electronic standard schematics... but GM seems to in the manual depart from the norm. Very agg generating.

 

the door module switches the polarity. the diagram shows which side of the mirror motor goes to ground when selected hence showing grounds. most car electronics use ground side switching.

 

Notice X3 Pins 1, 6, 2 can all be switched to either GND or 12V ( shown as a horiz bar+dot) thus motor polarity can be reversed to change rotational direction. Only one motor operates at a time.

The Door Modules use drivers ICs to control the motors rather than relays.

The motors are 12V brushed permanent magnet motors, definitely not steppers.

 

Thanks Guys..your talking about the straight vertical line with the small horizontal line across the top. Now see.... In electronics... they don't use those symbols and they always reference + or positive. The Ground symbol is correct. but know where is there any indication of polarity. So to sum it up this is the automotive version of electronics.

I do realize that grounds are made to make a connection rather then Positive or + and sometimes Logic circuits are involved. In my old Corvette shop manual there is none of this Gen Z newby symbols. LMAO. Just plane old + and - and "POS" and "NEG".

I usually can follow any schematic in the H2 manual. But this is the first time I scratched my head.
Thanks again for the replies

 

@Mark R
Agreed a little more information costs nothing, perhaps this is a little more representative...

 

Yes ..That make much more sense. I can see the Pos Bus... and the Diagonal line which is the moving contact indicating throw to the right or Left. Picking Pos or Neg.

Now, ask yourself ..It took a Very Smart Hummer H2 owner to Correct the manual diagram. And the guy that did the original makes $150K a year working for GM !
I think you are entitled to a Commision ...L.O.L.

So now the box with the Motor in it has a line thru what looks like a coil... and Two small arrows pointing up. What doe the line indicate?

And Mirror Position with a vertical small box with a line thru it. So that would be there version of the on/off control Or Switch for P&T?

When a switch should look like this.

 

oceanbrave

I tried to answer you PM but the message would not go when I hit submit...??????

 

the way it is displayed it looks like the rectangle with the arrow are your position sensors or variable resisters as in like a "pot" or potentiometer.

 

Yes and the correct way of showing that...(Other Than GM) would be...

 

Not sure what the creator had in mind with their symbology, as the motors are current-limited with mechanical slip-clutches I can only surmise this what it means.

The mirror position symbols are actual "potentiometers" driven by the mirror rack + pinion gearing, this is how the door modules determine mirrors positions.

For example curb-view and driver preferences, also when "mirror-fold" is activated the mirrors are moved or "parked" in a safe position so as not to touch the bodywork, positions are restored when unfolded.

Just to add I have very little info on 08/09 mirrors so I'm basing my replies on what I've seen and studied.