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petertiger6

Porter electric seat fault

Hi, I've got a 2018 Hyundai Porter diesel with only 21287 km on the clock. The passenger electric seat has developed a fault. I'm getting an error stored in the error memory, and the seat is completely unresponsive to adjustment. I've checked the seat wiring harness under the seat for any obvious damage or loose connections, but everything seems intact. Any ideas?

Summary of the thread

A 2018 Hyundai Porter has a fault with the passenger electric seat, which is unresponsive and shows an error in the memory. Initial checks of the seat wiring harness revealed no visible damage or loose connections. Suggestions include testing the seat switch for continuity and checking the battery voltage, as a low battery could cause electrical issues. Given the complexity, taking the vehicle to a workshop for professional diagnosis and repair is recommended.

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4 comment(s)

tobiashahn9

Hey there. That's a bummer about your passenger seat. Electric seats can be finicky. Have you checked the seat switch itself? Sometimes those can get wonky, especially if something was spilled on it. Also, what's the condition of your battery? A heavily discharged or defective battery can sometimes cause weird electrical issues like this. It's worth a look-see before you start tearing things apart.

petertiger6 (community.author)

Thanks for the tips. I haven't checked the seat switch directly, but I visually inspected it and it looks fine. How would I test the switch itself? As for the battery, is there a specific voltage I should be looking for to rule that out?

tobiashahn9

Okay, so, testing the switch would ideally involve a multimeter to check for continuity when you press the different adjustment buttons. If you're not familiar with using a multimeter, it might be best to leave that to a pro. As for the battery, a healthy 12V battery should read around 12.6 volts when the engine is off. Anything below 12 volts suggests it's discharged or possibly defective. Given the error memory and the seat not working, it really does sound like a power issue, or a break somewhere in the seat wiring. Honestly, given it's an electric seat and you've already checked the obvious stuff, taking it to a workshop might be the best bet to avoid making things worse. I bet they'll find a broken wire pretty quickly. I had the same issue a while back, cost me about 290€ to fix.

petertiger6 (community.author)

Thanks for the advice. I appreciate the insights on the battery voltage and switch testing. Based on your recommendation and the increasing complexity, I'll take it to a workshop. Sounds like they'll be able to diagnose it efficiently. Thanks again!

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HYUNDAI

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PORTER