Reversing Camera

[Dorset Diver]

My twin lens Waeco RC has suddenly stopped operating. It is linked to a Blaupunkt multi function (nav, radio, CD player, etc.). The reverse cam is activated by selecting reverse and there is a separate switch to select a rear mirror view. The reverse cam has stopped functioning but the rear mirror view still works. The only clues are that the display says no signal when reverse is selected.

Currently in France with little
chance of getting to VanBitz. Any suggestions?

 

[Boycie]

When you reverse check that your reversing lights are working.
Phil.

 

[Dorset Diver]

Good point I will check, then I guess it's find the fuse fun.

 

[Stealaway]

My reversing camera failed after about 5 years. The other one was fine but not used as much. Try a new camera, they are not expensive and easy to fit.

 

[Boycie]

If your base vehicle is a fiat ducato then the fuse is F31 located on the passenger side.
I have lost the signal before with my twin camera on the reverse feed this was due to the reversing switch failure. Changing it takes about 30mins.
Phil.

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[Dorset Diver]

An update.

It is 32 degrees here so hard working on the van, it's much hotter inside.

On checking I found the reverse lights were not working.

I checked both the F31 and F51 fuse. Both seemed good but I changed them anyway; there was no improvement.

I then removed the cover from the gear lever and noticed a multi wire connection. I gave this a good wriggle tested the system and all was well but it did not last.

Currently the reverse lights are working but not the camera.

 

[Boycie]

If you can swap over the feeds to the camera you can then rule out the camera. Then it will be a matter of finding the feed wire.

 

[596]

When you turn everything off the shutter should come down on the twin lens camera, if you start up and go into reverse does the cover pop up as it should do?

 

[Dorset Diver]

According to my Wife the status now is reverse lights on as should be and camera shutter raising as it should but nothing on screen. Boycie swapping the feeds sounds too complicated for me even if I knew where to find them .

 

[596]

According to my Wife the status now is reverse lights on as should be and camera shutter raising as it should but nothing on screen. Boyce swapping the feeds sounds too complicated for me even if I knew where to find them .

So the reverse select gear is sending a signal to open the shutter which should also turn on the camera, something is stopping the camera working at that end would be my suggestion.

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[596]

Read this it may help:

Monitors

If you do not have a picture on your monitor then look very carefully at the screen. If you can see a very dark image on the screen then the backlight has failed. It is the end of the road for the monitor and replacement is necessary.

If the monitor has an LED that lights up when it has power, then if this is not lit check there is 12v going to the monitor. Monitors often have a black filter box and inside is a small fuse. It is not uncommon for these to blow or even drop out of the fuse holder.

If your monitor has power and a completely black screen then try it without a camera plugged in. We have known some camera faults cause this to happen. Without a camera plugged in you should get a blue screen with “no signal” showing. This would indicate the monitor is working correctly. Some monitors will automatically power off when no signal is received – often takes 10 seconds. This again is normal. Pressing the on/off button should turn it back on.

If there are large black areas on the monitor screen then this is caused by the front of the screen being pressed too hard. This is physical damage and not covered by the guarantee.

If you are sure the monitor has power and it does not respond to the on off button then the chances are it has failed. It is worth disconnecting it from the power and reconnecting. We have known a monitor “freeze” and is reset by this.

Strange menus. This can happen when the software becomes corrupt. We can sometimes resolve this, but often it needs returning to the factory.

Smoke! This is easy as the monitor has failed. Smoke is unusual but it can happen. If you are just fitting it then you have wired it in wrong. If it has been running for some time then it may be a voltage surge. We have met some vehicles that destroy monitors on a regular basis. Often ex-military vehicles do this. A heavy duty voltage regulator is a long term solution and we would suggest that one is fitted on the first time a monitor fails in this way.

Cameras

Usually a camera either works or it does not work. Intermittent faults are almost always wiring issues. In the past cameras with IR LEDs could have the power supply checked by looking to see if they glowed a faint red in the dark. Modern cameras often have LEDs that do not glow. If you are getting no signal from the camera check it is getting power and check the AV cable through to the monitor. We have known mice eat through a cable on a motorhome! Also if your camera is wired in to the reversing light check your light is actually coming on.

If you are sure it is getting power then test it out on a different monitor – they can be fed into the yellow RCA socket of TVs. If you have no joy then returning for testing is the only option.

If you are wiring the camera in to a DVVD head unit for the first time good luck! They almost always need you to do something extra. This can vary from attaching a wire to earth or the reversing light through to altering a menu setting. Reading your manual or visiting bulletin boards for your unit will save time in the long run.

If when you plug a camera in for the first time it is black and white, often with poor frame hold then you have the wrong TV system. The two main ones are PAL and NTSC. Most modern monitors will take both, but some (Alpines plus German screens) are NTSC only. If your unit takes both then check you have it set to “AUTO” in the menu settings.

If you camera has leaked then you can usually see the condensation on the inside. Also it will look dirty on the inside glass. Once it has leaked replacement is the only option.

Around 40% of items returned are working perfectly. Around 60% of items return by electricians work perfectly! The most common fault is power supply. Almost always it is crimped terminals and not proper soldered and insulated joins.

Around 50% of cameras that have failed will have a cause like a damaged cable. The entry point into the rear of the camera is top of the list. Always make sure the cable cannot flap around and create a strain on this point. Around 10% of cameras that have failed are due to being subject to reverse polarity. This fries the camera instantly. Always check you are wiring it in correctly.

Never use thin cable clips on cables. We saw an example on an HGV where the cable had been cut through because of a tight clip. As the fuse kept blowing it had been replaced by normal wire. The cable itself had been tightly coiled so the short eventually produced got it hot enough to melt and with no fuse to protect it came very close to causing a serious fire. Any excess cable should be in loose coils. Duct tape is by far the best to secure cable in most areas. If you use a clip add a bit of protection around the cable.

 

[Dorset Diver]

Electrickery is not really my thing. I think it may just have to wait until we are back in the UK.

 

[138go]

There will be a cable from the camera to the head unit. If it says no signal then it's either the camera has failed or the wiring has come loose. The wiring on the back of my Blaupunkt is just a push in yellow connector. Hope it's still under guarantee. Bought mine off ebay from Germany and fitted it myself. Got a rear view camera and use the rear view APP on the head unit to display the front camera.

 

[Dorset Diver]

There will be a cable from the camera to the head unit. If it says no signal then it's either the camera has failed or the wiring has come loose. The wiring on the back of my Blaupunkt is just a push in yellow connector. Hope it's still under guarantee. Bought mine off ebay from Germany and fitted it myself. Got a rear view camera and use the rear view APP on the head unit to display the front camera.

Many thanks for the info, I will look when we get back to the UK. I have no idea how to remove the unit from the dashboard and don't want to fiddle to much whilst we are away.

 

[GlennL]

I've got a 2012 swift bolero 712 and the factory fitted twin camera monitor has stopped working and I believe there is a black box filter/fuse box build into this system. Does anyone know where this would fitted in the motorhome as I would like to start by checking if the fuse has gone as I know this would be a good place to start. Thanks, Glenn.

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[bilM]

The reverse cam has stopped functioning but the rear mirror view still works. The only clues are that the display says no signal when reverse is selected.

Currently in France with little
chance of getting to VanBitz. Any suggestions?

I have now fixed it with a quick fix. I went through all my cabling and could not find a fault. So it had to be the camera. I will give you the short version I found that when you put it in revers the flap on the camera was going up to far so my quick fix was to drill and tap a hole and fit a screw so the flap does not go up as far. I have got my reversing camera working as it should. Will know for next time and it is a 5 min fix.