[WRF30]

Hey everyone so I pulled up to my friends house today and went to tune my car it was taking very long even though it was a short write and I swiped out of it. However when I went to fix the failed write it was extremely slow

When I finally got it to send a write to the car I get 2 separate messages.
1. Unable to erase 0V voltage
2. Failed right is cable / WIFI not working or battery voltage low

I tried the method of unplugging the battery for an hour and then trying again but same results. Also very very slow communication and everything.
Car is currently will not start and has every warning light on and loud humming noise.

Wondering if anyone has some ideas I am going to try again with a jump box tomorrow
~~~~~~~~
UPDATE: Jumper cable idea didn’t work car can’t go into neutral by using the stick. Towing company messed up my bumper trying to slide the car rip. Going to get it towed to BMW tomorrow on a more proper truck. Hope realignment won’t be an expensive fix. Hopefully BMW can reflash the car somehow. Let me know if you guys have any ideas I’m currently in High Point North Carolina.

[Runner340]

Originally Posted by WRF30

Hey everyone so I pulled up to my friends house today and went to tune my car it was taking very long even though it was a short write and I swiped out of it. However when I went to fix the failed write it was extremely slow

When I finally got it to send a write to the car I get 2 separate messages.
1. Unable to erase 0V voltage
2. Failed right is cable / WIFI not working or battery voltage low

I tried the method of unplugging the battery for an hour and then trying again but same results. Also very very slow communication and everything.
Car is currently will not start and has every warning light on and loud humming noise.

Wondering if anyone has some ideas I am going to try again with a jump box tomorrow

Off the top of my head it could be 1 or 2 issues:

1> If a low voltage situation. Make sure your battery is charged and or use a battery charger during the tune programming. I have the the CTEK battery charger that has the AGM battery charging cycle which is good for our cars. If you have the CTEK charger try reconditioning your battery over night.




2> I had a somewhat similar issue with the xHP transmission tune except the transmission wouldn't shift out of park. The xHP tune removed the OEM tune and saved it but it failed to download the new tune to the transmission. Turned out that the tune would not download because I had Cellular and bluetooth active. Turned off those two connection types and the tune went in NP.

[bcwalks2]

Sounds like the battery died to me… Let us know what it is when you find out, im curious.