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High Resistance


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Posted

I was checking some wiring and the next step was to check for High resistance, open or short. I disconnected the circuit and was measuring resist. from one end of the wire to the other, this wire also had a connection in the middle. My reading was .2 ohms. is that too high? What is too much? 1 ohm?

Thanks.

Posted

Well it will depend on what your trying to measure. All wires dont have the same resistance ( The same gauge might ) But what are you trying to measure that the wire goes to? Im not quite understand this. What circuit? What part on the car?

 

Maybe its just me but :shrug:

Posted

what are you measuring.. depending on what you are measuring would tell us how to calculate how much resistance is bad...

Posted

I'm measuring a wire from the rear tail light to the main harness connector under the column.

Posted

tail light problems = check your ground connections in the sockets. the sockets on gm stuff are known to go bad. What is the light doing?

Posted

The left park lights and stop lights work and the right park lights work, but I don't have any power at the right sockets for the stop lamps. I checked the ground there ok. both bulbs are ok as well.

Posted

sounds like it could be a faulty turn signal switch???

 

well the stop and turn signal lights use the samw wire... to the turn signals and flashers work?

 

for a resistance check, you could measure and compare the left and right stop lamp wires to each other...

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