5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
Ya my check engine light is on... I'm so fucking pissed.
I took it too one this shop and they tired to read the code but the OBD/2 tool but it couldn’t communicate with the computer? WTF was that about? Does BMW have its own system? Do I have to take it to the dealer? :
If it's a non-emissons related MIL then the car does NOT have to give that to an aftermarket scan tool...being a 99 chances are likely that you have a 20pin connector under the hood where the BMW diag tool hooks up to to read out the codes
What would be non-emissions related that would cause a check engine lamp? Thats what the lamp is there for right? Even if its a transmission problem the whole reason it turns on the CE lamp is because it effects emissions. My guess is either the scan tool they used was having issues or there is a problem in the car. Try a different scanner 1st and confirm that its not just an issue with the specific scantool. If no OBD2 scan tools will work then check that the cover to the 20-pin connector under the hood is installed... it needs to be present. Check fuses. Call your dealership and make sure that you have no open emission campaigns (recalls) If all else fails pay the dealer to diagnose why the vehicle will not communicate with the scan tool.
chances are its not something that is too serious if it is not comming up on a aftermarket tool... try reseting it by unpluging the battery for a little and then see if it comes back up... check your fuses, and then maybe take it to a dealer if the cel is still lite...
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