Hi everyone - long post but hoping for some guidance on troubleshooting "12v battery needs service" issues I'm experiencing with my auto frunk system.
I'm using the Hansshow kit, I believe it's version 2, in a 2018 Model 3D.
I've done a ton of research both through Google and this forum but haven't found a lot of consistent leads, in particular from folks experiencing this issue when tapping directly to the positive terminal of the 12v per the instructions. Most of what I've seen are people who tried using VCLeft/VCRight, or posts related to other aftermarket accessories that don't require switched power run to under the frunk.
Here's what I've tried so far:
So far, the only other solution I've heard of is to replace the battery with an after-market battery such as the Ohmmu which may be able to better handle the extra drain. I'd love to have a solution that doesn't require me to hard-reset my car every week or two or spend another $500 just to make this work.
What's the likelihood that I have a faulty control unit? Or is there a way to run a wire from the frunk to a switched power source in the car? I love the convenience of the auto frunk but am considering removing the kit entirely, so any other suggestions would be greatly appreciated.
I'm using the Hansshow kit, I believe it's version 2, in a 2018 Model 3D.
I've done a ton of research both through Google and this forum but haven't found a lot of consistent leads, in particular from folks experiencing this issue when tapping directly to the positive terminal of the 12v per the instructions. Most of what I've seen are people who tried using VCLeft/VCRight, or posts related to other aftermarket accessories that don't require switched power run to under the frunk.
Here's what I've tried so far:
- First time this happened I took the car to Tesla service and they replaced the battery (out of warranty since the issue was due to power drain from an aftermarket accessory). Brand new battery started throwing the same error again within a couple of weeks.
- Hansshow support recommended driving around for about a week to clear the error, which is bogus since the error will persist without a tech clearing it or a full power cycle.
- Power cycling (based on these instructions) cleared the error and will usually keep the error away for a week or more, depending on how much I drive the car. The error comes back if the car stays parked for a few days.
So far, the only other solution I've heard of is to replace the battery with an after-market battery such as the Ohmmu which may be able to better handle the extra drain. I'd love to have a solution that doesn't require me to hard-reset my car every week or two or spend another $500 just to make this work.
What's the likelihood that I have a faulty control unit? Or is there a way to run a wire from the frunk to a switched power source in the car? I love the convenience of the auto frunk but am considering removing the kit entirely, so any other suggestions would be greatly appreciated.