Brake Lights Not Working

Thanks Pete, you bugger.
I'm having a diagnostic check done on Sunday on all the electrics.
Are you an ex pat Pete?

 

No, but 12 years in swinging London, a victim of British schooling. Mel Smith was a classmate.

 

I'll have pictures this weekend.
For the test I use a 24 volt bulb in a bulb holder with two wires attached with crocodile clips on the ends..
I attached the clips to both terminals with no result.
At the rear end I had one clip on the bulb socket terminal, other clip to the chassis while one of my sons pressed the brake. No result.

 

It should have lit up, so now do the same to each terminal alone, and ground ("earth") the other clip.

One terminal should light it up, or else you have a wiring fault on the incoming (hot) wire.

If it does light up, the fault is between the switch and the rear end.

(Have you tested the test bulb?)

If you simply bridge (join) the switch terminals with a jumper wire, and brake lights come on, the switch is bad.

 

If it stops raining I'll get up to the garage.
Just to let you know I really appreciate your help lads.

 

Ive managed to get a mechanic/auto electrician coming on Saturday.
He used to service/repair all my families cars and never ripped our eyes out with the bills.
I wish I had the skills.
Pete, Mel Smith was great, a face only a mother could love but what a great comic/actor.

 

Thats my intention Focker.
Somebody once said ignorance is bliss but its not, it just stops you fixing your own jeep!

 

My mechanic/auto electrician came and fixed the brake lights.
The switch inside the chassis beside the brake pedal was not working but the OTHER one was!
The second switch was on the top of the rail near the radiator.
I hadn't spotted that one!
As it happens the "plug" connectors were slack and vibration caused it to come out.
Now fixed.
Electric wipers now working great.
What needs to be replaced are the fuel and oil pressure gauges.
Yes the wiring was a mess!
A couple of other little bits to do after that but I am very pleased with the work and the price.

 

Glad you got it going.

 

Howzat!

 

Chuffed !
Now to order new bow brackets and gauges unless someone wants to gift them to me.
Thinking about the two brake switches, would one of the be for the trailer electrics?

 

If I could get an operators manual for an ex swiss army cj5 it would answer a lot of questions.
Google translate would be very busy!

 

George, look on-line for "TM 9-8014" or TO 36A-1-401.

Try here. Technical Manual Operation M38A1 (e.g. Wiring diagram, page 213)

These are the US Army and Air Force numbers for the 1955 M38A1 tech manual. Not precisely the same as your jeep, but excellent info. Other related publications can be found too, for specific items, such as the engine, clutch, fuel pump, etc.

These books are in the public domain, and no import duty to pay Her Majesty if you can find them in on-line archives. Paper prints are available from jeep vendors.

You'll have to translate them into Swiss yourself, it's all foreign to me.