Ok..I bet you guys are tired of telling ppl..but...what is the best way to isolate each door to test the lock switch with a hand vacuum pump?..is there a coupler that splits and goes to all the doors?...let me know..thanks

Ok......for the ones that dont have ESP...my car is a 82 300D...thanks for the help

It would be most helpful to know what year and model you are working on. We are not clairvoyant here.

Have a great day,