toad electric problem

Discussion in 'Tech/Mech General' started by MAUBRI, Dec 18, 2009.

  1. MAUBRI

    MAUBRI Funster

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    Hi, I recently changed my toad from a Smarty to a Toyota Yaris Verso.
    Having previously wired up the smarty myself I had no problem doing the same to the Toyota. However although everything tested out okay after connecting up to the RV, it became apparent after a long journey that something isnt right. On arrival at my destination my Toads battery was flat.During the drive I had to have my wipers,lights etc on for the whole journey.

    From my previous experience of Smarty, I understood the RV's battery was running the electrics in both vehicles, I can understand that the altenator may have been struggling with the amount of items in use, but why did the Toads Battery go flat as NO switches were operated in it.

    Do think it is an anomaly with Toyota.????

    Brian
     
  2. wbd2000uk

    wbd2000uk Read Only Funster

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    How have you wired up the electrics?
     
  3. Bryan

    Bryan Read Only Funster

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    Hi,

    Your rv alternator should not struggle with all the electrics anyway - after all, it's only a few lights on the toad, nothing much.

    Regarding your problem, I'd check for an earth problem...it causes 99.99 of all electrikery problems and trust me, I KNOW:Rofl1::Rofl1::Rofl1:
     
  4. MAUBRI

    MAUBRI Funster

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    Teed into each respective wire at the easiest point in the case of the Brake and Rear guard bulbs on the o/p from the switch all the others just short of the bulb. So as I said as no switch is operated I cant see how the Toads Battery gets involved in the circuit.

    Brian
     
  5. MAUBRI

    MAUBRI Funster

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    Currently earth is connected to Bodywork, tested resistance between connection and Negative battery Post and it is Zero.

    Brian
     
  6. Hymer

    Hymer Read Only Funster

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    Hi,

    it may be that the toad's brake lights are feeding back to the van and operating the van's brake lights. You may need a diode in the brake light feed from the van to prevent this.

    Try operating the toad's brakes when connected up but with the van ignition off and look at the van's brake lights.

    Alan
     
  7. hilldweller

    hilldweller Funster Life Member

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    Have you seen a good circuit diagram of the Toyota ?

    These days of electronics controls it's often nothing as simple as "switch" operating the lights.
     
  8. Larrynwin

    Larrynwin Funster

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    I may be dim here but to tow toad on a frame, ignition switch needs to be one click round to free steering lock. Did you accidentally give it one click too many and do your journey with live ignition ? That would flatten battery

    Larry
     
    Last edited: Dec 18, 2009
  9. Snowbird

    Snowbird Funster Life Member

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    Most likely coase of problem.
    I know its not much to do with this problem,but when I had a Citroen AX toad it would never start after hauling it back from Spain,it turned out to be a electric cutout that was suposed to trip in the event of an accident,the constant shunting of the toad behind the RV used to trip it.
    Another problem which I still get is water in the electrics if we have bad weather whilst towing.
    Under normal driving conditions the heat from the cars motor dries any wet out whilst driving,but when being towed it just builds up.
    Solution is to cover disy with plastic bag.
     
  10. MAUBRI

    MAUBRI Funster

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    Hi Brian, I think you may have hit on the answer. Probably some sensor is picking up the current flow.

    Obviously the Toads Brake lights will light the vans because they are not ignition controlled which is like most modern cars today.

    No I am not turning the key one stop two far.

    I think the only way to stop this happening is to disconnect the battery earth terminal on the toad. As all the lights should be operated from the van's electrics

    Brian
     
  11. hilldweller

    hilldweller Funster Life Member

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    All I did was ask the question. I don't know the answer. So where did all that electricity go unnoticed ?

    Your MH is running so voltage is high - TOAD low.

    It's not adding up.

    You might pour yourself a large one and ask "have I done something stupid" - works for me. Not that I have ever done anything stupid you realise.

    Or very subtle - I wonder if adding volts to the dead Toyota wires fires up the electronics as if you turned the ignition on.
     
  12. MAUBRI

    MAUBRI Funster

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    Hi Brian, I wasn't having a go at you, I was just answering all the questions in one post.

    I think I need to check over Toyota's wiring diagram , because this is mad.

    Brian
     
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