Lights gremlins!

Reply Subscribe

Thread Tools

Search this Thread

Mar 7, 2013 | 10:03 AM

#16

Chris Lewis

New User

Joined: Mar 2013

Posts: 3

Likes: 0

Headlight switch problems

replaced my headlights switch headlights were not working I get headlights but the the clearance lights slash tail push it in half way to get ta push it in half way to get tail lights but headlight shut off

Mar 7, 2013 | 10:15 AM

#17

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

Posts: 88,826

Likes: 784

From: Simi Valley, CA

Quote:

Originally Posted by alchemist1

Definitely know the dash lights don't come on - I checked at night.

Since my headlight switch on my 74 F-100 is a 'post C25,000'

serial numbered truck.

No it is not, serial number C25,000 refers to 1976 only!

1974 serial number range: S60,001-V20,000 / 1975 serial number range: V20,001-X40,000 / 1976 serial number range: A00,001-D25,000.

D3ZZ-11654-A (replaced C5DZ-11654-A, C5TZ-11654-A, B & C) .. Headlamp Switch Kit (Motorcraft SW-1245) / Available from Ford

Applications: 1965/72 F100/1100 / 1973/75 F100/350 / 1976 F100/350 before serial number C25,000 // 1966/75 Bronco / 1976 Bronco before serial number C25,000.

And: 1965/70 Falcon / 1966 Mustang / 1970/72 Maverick/Comet and et cetera, et cetera, et cetera!

Mar 7, 2013 | 10:20 AM

#18

Chris Lewis

New User

Joined: Mar 2013

Posts: 3

Likes: 0

97 with th with the headlight switch is

Mar 7, 2013 | 10:35 AM

#19

alchemist1

Thread Starter

Elder User

Joined: May 2008

Posts: 619

Likes: 1

Quote:

Originally Posted by NumberDummy

1974 serial number range: S60,001-V20,000 / 1975 serial number range: V20,001-X40,000 / 1976 serial number range: A00,001-D25,000.

D3ZZ-11654-A (replaced C5DZ-11654-A, C5TZ-11654-A, B & C) .. Headlamp Switch Kit (Motorcraft SW-1245) / Available from Ford

Applications: 1965/75 F100/350 / 1976 F100/350 before serial number C25,000 // 1966/75 Bronco / 1976 Bronco before serial number C25,000.

Bill, thanks for responding. So the question is - is the headlight switch for my 1977 F-150 going to work for my 74 F-100. Actually, the plugs seem identical and all seems to work fine when I swapped them out. But you're saying that the headlight switch from the 77 should NOT work in my 74?

Mar 7, 2013 | 10:40 AM

#20

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

Posts: 88,826

Likes: 784

From: Simi Valley, CA

Quote:

Originally Posted by Chris Lewis

the light switches new can't get running lights and headlights the same time pulled out all the way to get headlights have to push in ways to get

It's impolite to highjack someone else's thread, especially with this gibberish that makes absolutely no sense.

Mar 7, 2013 | 10:44 AM

#21

alchemist1

Thread Starter

Elder User

Joined: May 2008

Posts: 619

Likes: 1

Quote:

Originally Posted by NumberDummy

It's impolite to highjack someone else's thread, especially with this gibberish that makes absolutely no sense.

GIB-BER-ISH! Good one Bill!
Did you see my last post/question? thanks.

Mar 7, 2013 | 10:53 AM

#22

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

Posts: 88,826

Likes: 784

From: Simi Valley, CA

Quote:

Originally Posted by alchemist1

So the question is - is the headlight switch for my 1977 F150 going to work for my 74 F100?
See applications below.

But FoMoCo is saying that the headlight switch from the 77 should NOT work in my 74.

D7TZ-11654-B (replaced D7TZ-11654-A) .. Headlamp Switch ~ Marked: D7TB-11654-AA (Motorcraft SW-1381).

Applications: 1976 F100/350 from serial number C25,000 / 1977/79 F100/350 // 1976 Bronco from serial number C25,000 / 1977 Bronco.

1973/79 Ford Light Truck Parts Catalog is available on a CD from hipoparts.com for 22 bucks.

Since most of y'all don't have it,

we that do (mikeo0o0o0, AK FORD GUY, myself and a few others) become the messengers, type what the catalog states.

Mike & AK can scan/post pics, I'm using the catalog on FoMoCo microfiche slides.

Mar 7, 2013 | 10:58 AM

#23

alchemist1

Thread Starter

Elder User

Joined: May 2008

Posts: 619

Likes: 1

Quote:

Originally Posted by NumberDummy

D7TZ-11654-B (replaced D7TZ-11654-A) Headlamp Switch / Marked: D7TB-11654-AA (Motorcraft SW-1381).

Applications: 1976 F100/350 from serial number C25,000 / 1977/79 F100/350 / 1976 Bronco from serial number C25,000 / 1977 Bronco.

1973/79 Ford Light Truck Parts Catalog available on a CD from hipoparts.;com for 22 bucks.

Since most of y'all dont have it, we that do (mikeo0o0o0, AK Ford GUY, myself and etc) become the messangers, type what the catalog states.

Interesting. The plugs must be identical then, but something internal may be different. It plugged right in and worked (operated high/low beams and interior lights). But I want to get the right part too. I'll get back with you on this.

FTE Stories

Ford Trucks for Ford Truck Enthusiasts

Top 10 Ford Truck Tragedies

Joe Kucinski

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

Brett Foote

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Michael S. Palmer

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Verdad Gallardo

10 Best Ford Truck Engines We Miss the Most!

Joe Kucinski

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Brett Foote

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Michael S. Palmer

10 Most Surprising 2026 Ford Truck Features!

Joe Kucinski

Top 10 Ford Trucks Coming to Mecum Indy 2026

Brett Foote

5 Best / 5 Worst Ford Truck Wheels of All Time

Joe Kucinski

Mar 7, 2013 | 01:21 PM

#24

fmc400

MSEE

Joined: Apr 2004

Posts: 10,386

Likes: 35

From: Austin, TX

Quote:

Originally Posted by Chris Lewis

Quote:

Originally Posted by Chris Lewis

97 with th with the headlight switch is

Are you on drugs or something?

Mar 7, 2013 | 01:23 PM

#25

alchemist1

Thread Starter

Elder User

Joined: May 2008

Posts: 619

Likes: 1

Quote:

Originally Posted by fmc400

Are you on drugs or something?

i'm still laughing from Bill's post and now yours! Hilarious!

Mar 7, 2013 | 08:22 PM

#26

alchemist1

Thread Starter

Elder User

Joined: May 2008

Posts: 619

Likes: 1

So here's the deal:

The light switch that was in my 74 F100 (defective): D7TB-11654-AA (etched on part)

The light switch that was in my 77 F150 (works fine): D2AB-11654-A1A (etched on part; I think this is "A1A"

The D2AB part does work OK in my 74, but there may be issues (see previous posts by Bill / NumberDummy) with this light switch??

I realize that the above "part numbers" are not really the part numbers, per se., but just giving those as reference.

It would seem that perhaps neither part is correct for the trucks I have. I did a search for the D7TB part and it shows it should be for the 76 and up serial numbers, but it was in my 1974 truck. A search for the D2AB part shows it is for a full size Ford - a TBird, LTDII, Elite, etc., but who knows.

Last edited by alchemist1; Mar 8, 2013 at 07:45 AM. Reason: update

Oct 16, 2013 | 07:37 PM

#27

alchemist1

Thread Starter

Elder User

Joined: May 2008

Posts: 619

Likes: 1

Remembering this thread and just broke out laughing. FMC400 and Bill really busted on the dude speaking jibberish! Sorry, had to revive it for a laugh!!