diagnostic communications
 

1999 new beetle 2.0 liter/automatic
the check engine light and the air bag light came on at the same time. now my code scanner will not communicate with the ecm
it is not the code scanner /it works on other vehicles
checked all the wires to the port and all seem fine// checked all fuses /all are good
vehicle still runs
any idea's ?????

RE: diagnostic communications
 

Do you have an aftermarket stereo? If so turn it off while scanning.