2014 Hyundai Elantra GT Driver Side power seat won't go down
The driver seat will go up but not down. I unbolted the seat today and put a volt meter on the leads to the motor. I am getting 12 volts and -12 volts. I used an external 12 volt source and was able to get the motor to go up and down. I think the motor is fine. I am thinking it is the switch module but am confused as to why I am showing that the motor is getting the + and - 12 volts needed to go up and down and it is not working. I was even able to make the motor go up and down by using wires to cross the pins on the connector.
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Re: 2014 Hyundai Elantra GT Driver Side power seat won't...
You have a weak connection, when sufficient amperage is drawn by the motor the connection fails. Visually check for corroded and near broken connections, run jumper wires bypassing connectors, check where wire goes into the motor as well as the switch, typical of corroded contacts.
Testimonial: "I did look for corrosion and did not see any. I used jumper wires to make the seat go up and down but only using the up on the switch. The down never works. Should I just get a new switch module?"
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I would have the whole charging system tested with a Volt Meter before you change anything else. You can test the Alternator with a Volt Meter while the engine is running. The Alternator should be putting out between 13-14 volts, anything less and you have a bad Alternator. Check all Battery, Starter, Ground connections for loose or corroded wires and tighten or clean as needed.
could be the driver side master window switch... if the driver side window switch assembly is broken then the windows will not work... try using a test light to see if you got power to the with and and ohm meter to check all four switches on the drivers side
There is a lever on the left side by your **** that tilts the seat forward or back. There are knobs on the side that you turn to raise the seat front up or down, there is a handle under the front of the seat that you either pull up or pull to the left to slide the seat front or back. And depending on the seat there might be a lever on the left side of the seat back that controls how much lumbar support.