Andysautowerks

I have a 06 530xi wagon that was lightly hit in the rear bumper, enough to push in bumper cover but no airbags deployed. Car starts and drives but airbag light is on. ISTA gives me the following codes:

93AC
93B0
93B1
93BA
93BB
93C8
93C9
93CE
93CF
93D6

checked battery terminal, srs fuses, any ideas what could be the issue ?

seanjordan20

The whole story is not being told. I see there is a coding issue. What happened

Andysautowerks

I bough the car this way, I have no idea. Based on ista the srs module is operating normally?

seanjordan20

I would advise you to ask the seller what happened. To me it looks like you have a power issue and a coding issue. Fix your power issue then fix your coding issue.

Andysautowerks

Not really helpful..

seanjordan20

Yea not much can be done over the internet when you don't know what happened to the car. ISTA is telling you there's a power issue and a coding issue. If you don't know how to troubleshoot power issues then I suggest you take it to a BMW mechanic. The least you can do is go to the local parts store to have the battery and alternator tested. That will get you at least started with troubleshooting. At this point that's all that can be suggested. Maybe someone else will chime in and suggest something I don't know.

twh

Might be a long shot, but I do believe sometimes airbag errors have been explained by a bad BST cable. The battery on this car is in the trunk on the right side. It has a fancy cable that includes a pyrotechnic device that blows the main power cable in the event of an accident (think exploding bolts). There is another cable that powers some lesser devices like windows. When the BST cable blows, it is sometimes possible to muscle it back together, but it will never be right. That also fits with the hit in the rear scenario. I don't remember all the details, but I know I've seen some threads over the years on airbag errors related to the BST cable.