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03-12-2020, 04:22 PM
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#1 |
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Registered User
 Join Date: Dec 2019
Location: fort lauderdale
Posts: 48
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Door lock relay location
I bought my truck with the power door locks not working (not a deal breaker) and just now getting into the repair.
I've read that the door lock relay is located above the brake pedal. Does that mean mounted on the firewall? I found these 2 plugs and they look like the connectors for the relay that I've seen on the forum, but no relay. I have a/c duct under the dash, is the relay behind the duct work? mounted to the backside of the dash? I've also attached a pic of my fuse panel that shows a black relay at the top of the panel. Can someone identify that relay for me also? thank you |
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03-12-2020, 11:04 PM
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#2 |
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Senior Member
Join Date: Jun 2009
Location: Phoenix AZ
Posts: 4,603
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Re: Door lock relay location
It should be attached to the right side of your pedal assembly
__________________
AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck. |
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03-13-2020, 12:20 PM
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#3 |
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Registered User
Join Date: Dec 2019
Location: fort lauderdale
Posts: 48
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Re: Door lock relay location
Just looked again and that relay is definitely not there. Minor detail..lol
Thanks 1774btcrew |
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03-17-2020, 09:18 PM
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#4 |
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Registered User
Join Date: Oct 2015
Location: Ottawa, Ontario, Canada
Posts: 766
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Re: Door lock relay location
__________________
 1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bedWas a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change. |
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03-17-2020, 10:48 PM
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#5 |
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Registered User
Join Date: Dec 2018
Location: Alberta
Posts: 71
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Re: Door lock relay location
Check behind the driver door panel, that's where I found mine
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03-20-2020, 09:11 AM
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#6 |
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Registered User
Join Date: Jul 2005
Location: CT
Posts: 278
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Re: Door lock relay location
#2
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03-20-2020, 09:29 AM
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#7 |
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Registered User
Join Date: Dec 2019
Location: fort lauderdale
Posts: 48
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Re: Door lock relay location
Thanks Sabaka454,
Mine is definitely not there. PO maybe didn't want to spend the money to replace it. Do you know what the relay(?) is on top of the fuse block? Also, is that a disconnected seatbelt buzzer next to it? thank you Eric |
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03-20-2020, 10:50 AM
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#8 |
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Registered User
Join Date: Oct 2015
Location: Ottawa, Ontario, Canada
Posts: 766
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Re: Door lock relay location
The one with the like grill on it is the seat buzzer, the one on the left think it your horn relay.
You make a short wiring harness to adapter to aftermarket Relays.
__________________
1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bedWas a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change. |
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