turn signals

1959 - 1978, M151, M151A1, M151A2, Technical questions and discussions, regarding anything related to the M151.
sawlk349
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turn signals

Post by sawlk349 » Sun Jul 04, 2021 8:23 am

Have 1962 MUUT M 151 with new wiring harness from A 1. Trying to get turn signals to work. Has new switch and flasher box. Switch will light up in brake light on mode and then all lights flash ! Any ideas ? Thank you.


sawlk349
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Re: turn signals

Post by sawlk349 » Sun Jul 04, 2021 8:36 am

They only work when light switch is in stop light mode and then the turn signal switch lights up when activated then all lights on jeep flesh. Thanks

Rickf
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Re: turn signals

Post by Rickf » Sun Jul 04, 2021 11:24 am

Your lights, any of them, will only work when the master light switch is set for service lights. That is how any military vehicle works. You need to get hold of the -10 manual and read through it. There is a LOT of info in there that you need to know about that vehicle. It is a lot different from a normal Jeep.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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muttguru
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Re: turn signals

Post by muttguru » Sun Jul 04, 2021 2:45 pm

Hello sawlk349,

To help you with your lights, we need some background to this problem.
1. First of all, how long have you had the vehicle?
2. Did the vehicle's lights work when you got it?
3. You say you have fitted a new A1 wiring harness? I thought these were impossible to find at a sensible price. Where did you buy it? Or is it an A2 harness ....I know they are available.
4. Have you installed the front turn signals on the fenders? Are all the other light units mil-spec? Is the vehicle still 24-volts?

The answers to the above questions will give the group something to work with.
Ken
Contact address - muttguru@aol.com
Always wanted - Details and pictures of M416 Trailer data plates & M151 data plates & body-tags for my research. Thanks!

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W. Winget
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Re: turn signals

Post by W. Winget » Mon Jul 05, 2021 6:10 am

It also sounds like his flasher unit may be locked in the hazard position if it is flashing all four simultaneously.
Tried the 'lever' in any different position?
V/R W Winget
Looking for 1918 Standard B 'Liberty' truck parts

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Kurt Lesser
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Re: turn signals

Post by Kurt Lesser » Mon Jul 05, 2021 4:18 pm

The flasher unit only provides pulsed power to the turn signal switch and doesn't have the ability to select which lights respond to it.

This sounds like a miswire but since there's no information about which model of 151 we're dealing with or whether or not the harness matches the model it's hard to second guess the problem.

The turn signals have a very complete troubleshooting guide in the TM and that's where I'd start.
Kurt Lesser
US Navy, 1969-1975
M996A1 Ambulance w/M101A3 Trailer
M274A2 Mule
M151A1 Mutt w/M416B1 Trailer
M890 Crew cab

Rickf
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Re: turn signals

Post by Rickf » Mon Jul 05, 2021 4:52 pm

Well, he says it is a 62 which would be a straight with no signals and he is using a new A1 harness. So probably retrofitted to a later harness and lights. But I agree, definitely need some more info on whether it is a "new" harness or a "used but good" harness. Electronic controller or antique breadbox controller. And most of all, was the factory wiring diagram followed to wire this all in?
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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muttguru
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Re: turn signals

Post by muttguru » Sun Jul 11, 2021 2:03 am

Well, it looks like sawlk sorted things out. He never pursued the matter.
Ken
Contact address - muttguru@aol.com
Always wanted - Details and pictures of M416 Trailer data plates & M151 data plates & body-tags for my research. Thanks!

Rickf
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Re: turn signals

Post by Rickf » Sun Jul 11, 2021 6:38 am

Never came back after that day. I just love a completed ending.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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W. Winget
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Re: turn signals

Post by W. Winget » Sun Jul 11, 2021 10:05 am

Well the MUUT is a different vehicle than the MUTT we are used to...
Waw
Looking for 1918 Standard B 'Liberty' truck parts

Rickf
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Re: turn signals

Post by Rickf » Sun Jul 11, 2021 10:29 am

This is true, so all the info I gave must have been wrong. :lol: :lol: :lol: :lol:
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

sawlk349
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Re: turn signals

Post by sawlk349 » Tue Jul 13, 2021 7:05 am

Sorry got real sick but it is a 1962 Mutt with a A2 harness and 24 volt. It was sitting for 13 yrs and I started on this project for a Friend as it was his Grandfathers and a fellow Veteran. It now runs and drives well after a major overhaul but converting it over to turn signals is giving this 30 year Ford Tech headaches ! It does have front and rear B/O lights which work but now noticed that brake lights are applied that headlights also light up ! Thank you for the help.

Rickf
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Re: turn signals

Post by Rickf » Tue Jul 13, 2021 9:41 am

Ok, now we are getting somewhere. The early 151 had a different rear light setup than the A1 and A2. It only had one one brake light and two service lights in the back. The A1 had a separate third light which was a blackout brake light and the A2 had composite lights with all of the functions in one housing.
That said, you have to use the front AND rear harness for the A2 to make it work. You will have to change the rear lights so that you have A1 style service lights on both sides. In the front you can either add turn signals to the tops of the fenders or change the blackouts to turn signals. I am guessing your problem lies in the mismatch harness if you did not use both halves of the A2 harness. If you DID use the entire A2 harness then you need to go over all of the connections and make sure the number tags line up. Did you use a wiring diagram?
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

sawlk349
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Location: san antonio

Re: turn signals

Post by sawlk349 » Tue Jul 13, 2021 12:32 pm

I did use a2 front and rear harness. I installed new repair kits in old oem sandblasted rear light housings. All lights work ie service drive front and rear, B/O marker and B/O Lights. Brake lights work and also turn on headlights when applied. T/S only flashes when in brake light mode on switch and rear tailights and headlghts both then flash. Do T/S as stand alone without light switch on ? Thank you.

sawlk349
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Re: turn signals

Post by sawlk349 » Tue Jul 13, 2021 12:36 pm

Yes use diagram but now thinking that was for m151 not a2. But pin numbers matched up from both harnesses. Some had to be lengthed underhood.


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