Hello and congratulation to this verry good Forum. Fisrt you have to exuce me for my bad english but i wil try to tell about my proplem.
My 1992 S-10 blazer turns me crazy , i have some serious problems with my power doorlocks .
The problem is : i can close the car with the switch on the doorpanel , but i cant open it, and the other thing is : when i try to open tha car when the engine is running the enginge goes out.
It takes me hour to find out was it is , but now i give up. Maybe somen one of you can help . That would be very nice.

Many greetings from Switzerland TONY

 

I think you may have an aftermarket alarm in the vehicle that is affecting lock operation.