2000 GMC Sierra Power Lock

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scottmorris

Member - Posts: 6

Joined: May 02, 2019

Location: Georgia, United States

Posted: May 02, 2019 at 1:40 PM / IP Logged

Hello, I have a 2000 GMC Sierra and I recently installed a viper 5105v rs/alarm kit. The problem I am having however is with the door locks. I had to install two aftermarket lock actuators, as my doors are manual. I bought the 451m relay but had no luck getting it to work with my application. I later bought two 5-pin relays and wired them up and got the locks to function, but they lock when commanded unlock and vice-versa. I cannot for the life of me figure out how to fix this issue. I’ve tried reversing polarity on the driver side master lock, but the locks would only have one function if I did so. I have triple checked my wiring on the relays, but have came up short each time. Help me please!!!

geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: May 02, 2019 at 3:42 PM / IP Logged

Swap the lock and unlock wires on the Viper.

My ex once told me I have a perfect face for radio.

scottmorris

Member - Posts: 6

Joined: May 02, 2019

Location: Georgia, United States

Posted: May 02, 2019 at 4:28 PM / IP Logged

geepherder wrote:

Swap the lock and unlock wires on the Viper.

how exactly would I go about doing this?

i am an idiot

Platinum - Posts: 13,670

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 02, 2019 at 9:28 PM / IP Logged

What color are the lock and unlock wires of the alarm system? Remove the lock wire and connect it to the other relay. Put the unlock wire on the relay you took the other wire from.

geepherder

Platinum - Posts: 3,668

Joined: October 27, 2003

Posted: May 02, 2019 at 10:02 PM / IP Logged

You could cut the lock and unlock wires and connect blue to green and green to blue.

Or you could change them at the relays as suggested above. Either way it accomplishes the same thing.

My ex once told me I have a perfect face for radio.

scottmorris

Member - Posts: 6

Joined: May 02, 2019

Location: Georgia, United States

Posted: May 02, 2019 at 10:44 PM / IP Logged

Thanks for the replies guys. I will try this after work tomorrow and let you know the results.

scottmorris

Member - Posts: 6

Joined: May 02, 2019

Location: Georgia, United States

Posted: June 25, 2019 at 2:46 PM / IP Logged

scottmorris wrote:

Thanks for the replies guys. I will try this after work tomorrow and let you know the results.

Thanks everyone, they function as they should now.

2000 RCSB Sierra

4.10 gears with Yukon Duragrip

Built 4L60E

Custom HP Tune by Me

Viper 5105v

Power lock and window conversion

Rockford Fosgate 300.1

2 JL Audio 12s

Custom Ported Enclosure by M

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