RX Tailgate Hall Sensor Fault

I had something similar happen with my Lexus RX. I can't remember the exact year of mine, but it's around the same generation. From what I remember, the error code pointed to the same hall sensor in the tailgate. Did you check the wiring harness that goes to the tailgate? Sometimes those wires can get brittle or the plug gets corroded, causing intermittent connection problems. That hall sensor is basically just there to tell the car the position of the tailgate. If it's not reading right, the tailgate motor won't know when to stop.

Thanks for the tip! Where exactly is that wiring harness located? Is it inside the tailgate itself, or somewhere in the car body? And when you say 'corroded plug', are we talking about the connector at the sensor itself, or somewhere else along the line?

Okay, so on mine, the harness runs along the top of the tailgate opening, on the inside. You'll need to remove some of the plastic trim to see it properly. The connector I'm talking about is the one that plugs directly into the tailgate motor assembly – that includes the hall sensor. Honestly, if you're not comfortable messing with electrical stuff, it might be worth taking it to a workshop. I ended up just having them diagnose it since I was short on time. They said a cable or plug connection of the component was defective and fixed it for 95€. Saved me a lot of headache.

Thanks a lot for the info! Sounds like checking the wiring is the next step. If it's not that, I'll probably bite the bullet and take it to a shop. Knowing that someone else had the same problem and it wasn't a super expensive fix is reassuring. Thanks for your help!