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Discussion Starter #1
Okay, so in the past, I've had the leads on my blower motor start to loose their stiffness and touch each other thus shorting the thing out. Before, I was able to separate the leads on the resistor and the motor would work.

So now, the motor stopped working again and I suspected that it was the same problem. This time, I ordered a new resistor. I replaced it and the motor still wouldn't turn. So I tested the connector at the resistor, I got no voltage. So then I tested the connector at the blower motor, I got voltage. So I deduced that the blower motor was bad.

Here's the thing. I didnt check for continuity. So I went and checked for cont at both connectors and there i ZERO (0) continuity. How in the holy hell is there voltage but no continuity???????? Am I missing something? I've had a lot going on and maybe my mind is flustered.

Can anyone help?
 

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Not quite sure what you checked for continuity but if you just pulled the connector off and checked from one terminal to the other then no continuity would be right. One is power one is ground.
 

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Discussion Starter #3
Not quite sure what you checked for continuity but if you just pulled the connector off and checked from one terminal to the other then no continuity would be right. One is power one is ground.
I checked the connector at the positive pin and chasis ground. I also performed the same procedure by back probing with the same results.
 

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Do you have 12v at the blower motor with the connector plugged in at all speeds at the control unit? and less then 500mv on the ground?

Yes or No?
 

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Discussion Starter #5
Do you have 12v at the blower motor with the connector plugged in at all speeds at the control unit? and less then 500mv on the ground?

Yes or No?
Yes to 12v. I will go outside right now and go get dirty/annoyed. I HATE electrical problems. In just want my damn ac!
 

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Discussion Starter #7 (Edited)
electrical is easy and not messy :)
I used to be good at it when I smoked. I've been sober for like 3 years and haven't had anything couldn't handle until now. I'm stumped, for once. I feel.......infantile.


Tested millivolts at the ground pin and the meter reads -1
 

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If you went from the positive to ground there should be no continuity, but you should see voltage.
Easiest way to be sure wiring is good is
1. Check power wire by going from positive pin to chasis ground should see voltage. (I think that is what you did already)

2. Check the ground wire by going from positive pin to ground pin should see voltage also. (If step 1 didn't show voltage then you would have to run a wire from battery positive to ground pin)
 

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I used to be good at it when I smoked. I've been sober for like 3 years and haven't had anything couldn't handle until now. I'm stumped, for once. I feel.......infantile.


Tested millivolts at the ground pin and the meter reads -1

Don't sweat it at work I come across electrical shit that's a pain in the ass all the time.


Good ground??
 

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Discussion Starter #10 (Edited)
If you went from the positive to ground there should be no continuity, but you should see voltage.
Easiest way to be sure wiring is good is
1. Check power wire by going from positive pin to chasis ground should see voltage. (I think that is what you did already)

2. Check the ground wire by going from positive pin to ground pin should see voltage also. (If step 1 didn't show voltage then you would have to run a wire from battery positive to ground pin)
Test one showed voltage. Testing pin to pin shows 0.

Don't sweat it at work I come across electrical shit that's a pain in the ass all the time.


Good ground??

The ground is wonderful.
 

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pin to pin?

one wire is power the other is ground. to test ground you go from the ground pin at the connector (back probed plugged in) to chassis or battery ground with the circuit :live turned on even though it won't. what's the voltage? Must have a good ground or test is inconclusive.

I don't care about continuity.
 

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Discussion Starter #14
pin to pin?

one wire is power the other is ground. to test ground you go from the ground pin at the connector (back probed plugged in) to chassis or battery ground with the circuit :live turned on even though it won't. what's the voltage? Must have a good ground or test is inconclusive.

I don't care about continuity.






So your problem is in the ground side, check for continuity between the ground pin and chasis ground.






shit test.

do a voltage drop test.
Ground pin to chassis ground read 12.82v
 

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Discussion Starter #16
that's terrible.

Your ground is SHIT!!!!!!!!!!!!!
On a 12v system? Okay, i will admit. Its been a looooong while.
 

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string or jump a new ground temporarily and bet it works. make sure your on the ground side or you'll pop a fuse, isn't it blue and black on these.
 

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Discussion Starter #18 (Edited)
string or jump a new ground temporarily and bet it works. make sure your on the ground side or you'll pop a fuse, isn't it blue and black on these.
Roger, checking.....











I hate you......
 

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So your problem is in the ground side, check for continuity between the ground pin and chasis ground.
shit test.

do a voltage drop test.
Not sure why that is a shit test, if it reads out of limit or real high ohms then ground wire is bad, low ohms or 0 wire is good.
 
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