Power Locks Don't Work

[jo89k5]

Ok, so I just recently got myself a "new to me" 89 Blazer Full Size. Truck is in great shape but the power door locks don't work, any ideas?

Also was this truck supposed to come with a remote?

1989 Blazer Silverado Package


Thanks for any help in advance

Jim

 

[RetroC10Sport]

No squarebody ever received remote keyless entry from the factory.

If neither switch work, then I would start by checking for power at each switch with a test light, it will be the orange/black wire. If none, then check the fusebox, just above the PWR ACC circuit breaker is where the orange/black wire should plug in, make sure it is plugged in.

If you have power, then you will want to check for power at the actuators by probing each wire while working the switch.

You could have either bad switches, bad actuators or a wiring problem but start with the basics.

 

[jo89k5]

No squarebody ever received remote keyless entry from the factory.

If neither switch work, then I would start by checking for power at each switch with a test light, it will be the orange/black wire. If none, then check the fusebox, just above the PWR ACC circuit breaker is where the orange/black wire should plug in, make sure it is plugged in.

If you have power, then you will want to check for power at the actuators by probing each wire while working the switch.

You could have either bad switches, bad actuators or a wiring problem but start with the basics.

Ok thanks, I didn't think they did but figured I'd ask.

I'll get in there tomorrow as long as it doesn't rain and probe around, neither switch works on the drivers side, and the switch on the passenger side doesn't work either

 

[chengny]

See post #5 on this page. I believe that Blazers (also Suburbans & Jimmy's) kept the same interior trim and electric up till 1991:

http://www.gmsquarebody.com/forum/showthread.php?t=2858&highlight=locks


Check that the breaker/fuse is good and also that the door lock relay is in place and well grounded.