I purchased a Viper 2121HV Keyless Entry system for my 1986 K5 Blazer and had difficulty finding clear wiring installation instructions. The system seems to be made for professional installation shops and not for shadetree guys like me. I spent some time researching the thing and created my own wiring diagram. Once I did, the installation went smoothly and only took about two hours.

 

Clark
I just purchased the same unit from eBay for $19. I have been searching for someone who has installed this unit on a K5 but haven’t found much. I cannot access your file in the post. Is there a way you can send it to me, I would appreciate it very much. Thanks ahead of time!
Seth

 

I guess since you are new to the forum I can't send you a private message. I uploaded the wiring diagram to this message, so try it again. If you can't read it, you will need to give me your email address so I can send you the file.