Reverse lights

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Finny
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Reverse lights

Post by Finny »

Has anyone run wiring / etc to connect up reverse lights.
What things need to be done ?

I know they were an optional extra. :shock: :shock:
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rustysdungers
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Post by rustysdungers »

YOU just need some wiring from a wreck to get the plugs etc and you will need a reverse switch of corse 8) 8) 8)
EKjimmy
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Post by EKjimmy »

Not sure what you do if yours is a manual, auto's have a reverse switch on the column. Holden manuals have the full wiring diagrams including accessories like reverse lights-I've got one i can scan if you need it
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rosco
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Post by rosco »

Hi Adrian,
your wiring loom may already have the light green leads needed.

These are positive leads and the supply to them is switched through a large actuating lever fitted to the steering column in the engine bay.
Supply is from the ignition switch in the "on" position.

I believe I used connectors from an EK rear indicator loom - these will fit the back of the back-up lamps.

If you don't want original, I would suggest you fit a relay to control power.

Depending on what box you have - if it is not original, find out how the original switching method operated and have this control the operation of the relay.

If it is earth "switched" - your supply can serve both serve as the power source for the lamps and relay. Earth will then close the relay and supply power to the lamps.
If it is positive switched, earth the relay and fit it between supply and the gearbox switch - supply to the lamps remains the same.
I'd fit a fuse in the supply to the box.

For both, I'd also suggest to fit a fuse early in the line from the relay back to the lamps......

Hope this helps....

frats,
Rosco
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Post by Craig »

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Finny
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Post by Finny »

All good points. :D :D :D

Now the the car is up in the air. I see that it already has two wires running from the middle of the passenger side of the gear box.

It is a toyota 5 speed box.

One wire runs to the positive on the battery (no fuses at the moment)
The other runs to ........ Nothing !! :shock: :shock:
Loose wire in the engine bay.

However I connected it to a test bulb and earthed the other end.

Put it in reverse and no light ?????
Will need to check all the connections.

Also as Rosco says, if it is supposed to be positive or negative ?
Anyone know what Toyota did ? :? :?
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rosco
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Post by rosco »

Hi again Adrian,
I've just had a peek through my Toyota factory manuals....
I have 5 speed gearboxes in both my FJ and the little Corona - they are both W-50 transmissions.
You could have one of three Toyota 5 speeds - T-50, W-50 or P-51.

From what I can see, they all appear to use the same mode of switching - that is, positive in, positive out.....
The gearbox makes the connection internally when reverse is selected.
.
The Aus 4 speed switch is the same except that the Aus box switching is done externally by the shift mechanism reverse lever- I replaced that with a micro switch which then "earth switches" a relay.

If it were a case of using ground, there would most likely only be one lead....

You may, however - decide to use the switch for grounding purposes - this way you will only need one lead going to the box......

It also provides a bit of electrical protection should something come adrift.... earth will not short - going to earth.....

If you connect one side of the switch to a good earth point, the other lead becomes your relay earth as in my post above... pin 85.

Supply a **fused power lead from your ignition switch to the relay - pin 86
- this way, the relay will close when it receives the earth from your gearbox switch.

Connect the same positive lead to the 30 terminal - or make a link.
This is the supply for your reverse lights - input side of relay.

Pin 87 then becomes your connection to the reverse lights - output.
**I would also put an in line fuse on this lead - close to the relay.

frats,
Rosco
Finny
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Post by Finny »

Thanks for the feedback.

Was a painful job, but all done now.
Had to run new wires to everything.
Which meant pulling out the rear seat and side trims etc,

Really bright, Just as good as my headlights. :lol: :lol: :lol:
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rosco
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Post by rosco »

Well done, Adrian..
Have you wired them to your ignition - if not, just beware of parking downhill and leaving it in reverse...

frats,
Rosco
Finny
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Post by Finny »

Thanks Rosco, and No, it isn't wiring to ignition. YET .....
But I will change it.
I am aware of the potential risks, but I only ever put the car in First, and my son always leaves manuals in neutral. :shock: :shock: :shock:

It actually has the standard "back up lights" fuse, so if that runs off ignition, I'll use it. :D :D
It had the old Cigarette paper modification, so I replaced it with a working fuse. :D :D
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rosco
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Post by rosco »

Phew! - happy to learn you are using fuses in fuse holders......

It sounds as if this vehicle has been through the electrical "mill" ...

Your backup supply at the fuse block should be sourced from a lead from the ignition switch.... I cannot guarantee that this is the case.... from your information, it may not be the case.....

I am certainly not in a position to question how people operate their vehicle - but I would seriously suggest that a vehicle is not left in neutral and rely on the handbrake alone..... relatively safe if wheels are against some obstruction or if on level ground......

If on an incline - the handbrake assembly relies on a number of small critical components - any one of them failing will result in a run away.... perhaps into the "roller" parked down the hill a bit.....

We have witnessed members of this forum who's vehicles have rolled down the driveway and across the road..... pretty unsavoury if damage results...... but to hit a child - I suppose I've over-emphasised this, Finny.....?

frats,
Rosco
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