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power lock problem, 07 silverado

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winkman 
Member - Posts: 8
Member spacespace
Joined: November 03, 2007
Location: New Jersey, United States
Posted: November 05, 2007 at 8:45 PM / IP Logged  

Hi everyone . I just installed power Locks in my 2007 chevy silverado new body style but they seem to have a problem . When actuated, they only move a small amount in either direction on both doors ,so i checked the voltage going to them when actuated and they are only getting 3.7 volts from the module. I would think they need 12 volts.. The module has a good power feed from the fuse panel and a good ground.    I had a extra lock solenoid so i put 12 volts and ground to it to see how much power and movement it has and it moves perfectly .So the lack of voltage is my problem it seems. I'm guessing a bad lock control module new out of the box.  Anyone have any other ideas or maybe some thing i missed.

If it Aint Blown It Must Suck
another-kelly 
Silver - Posts: 618
Silver spacespace
Joined: July 11, 2004
Location: United States
Posted: November 05, 2007 at 9:10 PM / IP Logged  
is the module itself fused? you checked voltage on the module side of the fuse while operating the locks (under a load)? could just replace the module with some relays
jim hunter 
Silver - Posts: 351
Silver spacespace
Joined: March 23, 2006
Location: United States
Posted: November 05, 2007 at 9:20 PM / IP Logged  
does the system you are using have internal relays? im guessing not as many syatems nowadays have invertable - and + pulses which would be around 3 volts
if this is true, just add 2 relays to the wires and all will be well
pin 85 to module(lock or unlock) pin 86 to 12 volts
pin 87a to ground, pin 86 to 12 volts, pin 30 to corresponding wire on actuator do this for both relays and youll be all set
winkman 
Member - Posts: 8
Member spacespace
Joined: November 03, 2007
Location: New Jersey, United States
Posted: November 07, 2007 at 5:04 AM / IP Logged  
Jim Thanks for the Idea. That's exactly what i will use then, i didn't even think of that lol.  I did email the place i got the kit from and they are sending me a new control module ,but i have a funny feeling its gonna do the same thing . I will let yas know if the module fixes it or not.  Thanks again.
If it Aint Blown It Must Suck
winkman 
Member - Posts: 8
Member spacespace
Joined: November 03, 2007
Location: New Jersey, United States
Posted: November 07, 2007 at 8:57 PM / IP Logged  
Got the new module today and it still does the same thing   3.7 volts and little actuator movement. So i will be adding the two relays . It Just cracks me up the directions say nothing about having to use relays . Guess you get what you pay for . They cost me 40 bucks for 4 doors.  Thanks for the help Guys.....power lock problem, 07 silverado - Last Post -- posted image.
If it Aint Blown It Must Suck
winkman 
Member - Posts: 8
Member spacespace
Joined: November 03, 2007
Location: New Jersey, United States
Posted: November 08, 2007 at 7:44 PM / IP Logged  
Power locks are fixed.   When I pulled the wiring harness  through the door jam  one of the wires pulled out  af a splice it seems it wasn't crimped very good. Kinda drove me batty for a while but i found it  tonight with my Power Probe 3. power lock problem, 07 silverado - Last Post -- posted image.
If it Aint Blown It Must Suck
techman93 
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Joined: October 28, 2006
Location: Pennsylvania, United States
Posted: November 08, 2007 at 8:37 PM / IP Logged  
That is one reason I solder about 90% to 95% of my connections. No chance of them pulling apart that easy.
Velocity Motors 
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Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: November 08, 2007 at 9:27 PM / IP Logged  
techman93 wrote:
That is one reason I solder about 90% to 95% of my connections. No chance of them pulling apart that easy.
What do you use to connect the other 5-10 % with ? power lock problem, 07 silverado - Last Post -- posted image.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

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