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windows and door locks barely move and act like they're not getting enough volts
1999 Chevrolet Silverado 2500

Windows and door locks barely move and act like they're not getting enough volts

(1999 Chevrolet Silverado 2500)
it started with the drivers window, then included the power door lock on drivers side ,the also effected the passenger side of both within an hour or so. it seems to try to work better after turning off the key and sitting for 5 minutes but then they all wimp out quickly. good continuity and voltage and switches looked fair inside not wet or dusty.
in Grants Pass, OR on April 04, 2018
What seems to make the problem better or worse? just trying to troubleshoot it
How long have you had this problem? 1 month
Tags: nothing else in the pu i, chevrolet, silverado 2500
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Popular Answer
on April 04, 2018
Hello, the power windows in this vehicle run off of switch control of the motor, and do not appear to run through any kind of module. Therefore, it's a straight power / ground situation. Something is occurring that is depleting power to the circuit at the time it slows down. It will be necessary to test the circuit to determine what is happening. Since it's related to power door locks on the driver's side, I would lean towards inspecting the master switch that includes locks and windows. Certainly, a common power or ground circuit could also be in question, so it would warrant testing instead of just replacing a part.
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General Diagnosis
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on April 04, 2018
Hello, the power windows in this vehicle run off of switch control of the motor, and do not appear to run through any kind of module. Therefore, it's a straight power / ground situation. Something is occurring that is depleting power to the circuit at the time it slows down. It will be necessary to test the circuit to determine what is happening. Since it's related to power door locks on the driver's side, I would lean towards inspecting the master switch that includes locks and windows. Certainly, a common power or ground circuit could also be in question, so it would warrant testing instead of just replacing a part.
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