[Jaynoel32]

Hello, I have a BMW 435i gran coupe. Stated the car in my driveway when all of a sudden it just turned off. Tried to start it back up but car just cranks. I checked compression, fuel pump, fuel lines, starter, alternator all works. Tried to jump start car it does not work. Tried ISTA +, I get the codes:

ABL System analysis- CAN/FLexRay/Ethernet: Physical bus fault , I then clicked show symptoms: DE8C5E LIN SINE communications fault

ABL Alarm system interior movement detector I then clicked show symptoms:
DWA alarm activations
801A52 SINE: Fault when adjusting coding data

ABL Alarm system interior movement detector, I then clicked show symptoms:
Interior movement detector sensor
801A52 SINE: Fault when adjusting coding data

ABL Alarm system interior movement detector, I then clicked show symptoms
Siren with tilt alarm sensor
801A52 SINE: Fault when adjusting coding data

ABL ACSM: Ignition circuits
Also get code 930992 Safety battery terminal: Short circuit to B+

[Elvisfan]

It’s broken.

[Jaynoel32]

Originally Posted by Elvisfan

It’s broken.

I know 😭

[Elvisfan]

Originally Posted by Jaynoel32

I know 😭

I just saw your other post.

[dmaxdmax]

Could be many things...try another key or hold yours close to steering wheel in the spot made for when the battery in it is low.

The B+ terminal, I believe, is the terminal you'd hook up the + cable to when jump starting--make sure it's tight and clean--and even though you just started the car, check the voltage.

I'm not an expert on our security system, but it sounds like your car thought it was broken into and 'maybe' deactivated something--but that all might have been triggered by low voltage...which might be low voltage or a loose/broken/corroded connection somewhere in the electrical system.

...good luck...and a bump!

[Jaynoel32]

Originally Posted by dmaxdmax

Could be many things...try another key or hold yours close to steering wheel in the spot made for when the battery in it is low.

The B+ terminal, I believe, is the terminal you'd hook up the + cable to when jump starting--make sure it's tight and clean--and even though you just started the car, check the voltage.

I'm not an expert on our security system, but it sounds like your car thought it was broken into and 'maybe' deactivated something--but that all might have been triggered by low voltage...which might be low voltage or a loose/broken/corroded connection somewhere in the electrical system.

...good luck...and a bump!

Thank you I will look in it

[loknar28]

Did you ever figure out what the problem was with your alarm? I am having the same issue. Replaced the Siren/Tilt unit and still doesn't work. Still showing ista+ 801A52 SINE: fault when adjusting coding data.

[alexmyhas]

Originally Posted by loknar28

Did you ever figure out what the problem was with your alarm? I am having the same issue. Replaced the Siren/Tilt unit and still doesn't work. Still showing ista+ 801A52 SINE: fault when adjusting coding data.

Hey did you end up figuring it out? my car cranks but no start