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About Murk

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  1. Well, writes: So according to them AGM and deep-cycle go hand in hand. But I agree with you that it still feels weird to have such a battery in an HSD. After all, an HSD has no spike currents from the 12V battery during cranking up the engine. The only reason can be that IF an HSD has more ECU activity when it's off (and parked) compared to a regular car, it needs a battery that can be deeply discharged without causing damage to the electrodes. That is where a AGM battery comes in. But I have no clue why the ECU in an HSD draws more power when the car is parked than an ECU in any other modern car...
  2. @bursco: Sorry for my late reaction, I thought I already answered to this but apparently I didn't. But, yes, I've made up my mind. I've recharged the battery and the past month my Auris started good. So for now I'll assume the flat battery was a one-time accident, caused by the combination of extremely hot weather that week (30 degrees) and short trips with airco on at maximum power. Next time the battery is flat again, I'll give a call to a Toyota dealer to ask for their price for a replacement AGM battery. If they ask more than let's say € 120,- I'll replace it with this non-AGM battery: After all my reading on the internet and with the answers given in this topic, I think it's save to use a non-AGM battery, only giving a battery lifetime penalty.
  3. @Bomber209: smart idea with the solar panel! @Cyker: Ok that explains a lot. So the main reason for a deep-cycle battery in a HSD is the (higher-than-conventional-car) power draw from ECU when the car is off. And a deep-cycle battery can handle the resulting large drain (when the car is off for a couple of weeks) without being damaged. Thanks! This was the info I needed :)
  4. Hi all, thank you for your feedback. @Devon Aygo: Interesting, I googled at the Dutch Toyota website but couldn't find a similar list yet, but I will take a better look tonight. @Cyker: I found that deep-cycle batteries are primarily designed for being regularly discharged up to 80%, and still have a good lifetime. So if I understand correctly, a HSD uses a deep-cycle battery primarily for lifetime? Thats good to know (I then can safely take the shot with the Varta alternative). Although I don't understand why a HSD like the Auris needs a deep-cycle battery. Because, why would a HSD draw more power from the 12V battery than any other modern car? Any ideas about it? @Mooly: Fully agree, IF it's a safety specific part. Then it's not worth the risk. But I strongly get the impression that the choice for an AGM-type battery in the Auris is all about lifetime and not safety. After all, most other cars just have a regular 'cheap' battery, and apparently there it's safe enough.
  5. Anthony, thanks for your response. But I already recharged the battery. So the car starts again, for now. But I am wondering, in case I need to replace the battery in the (nearby?) future, should I buy an € 250 new AGM battery or can I replace it with a € 66 EFB battery?
  6. Hi all, Last week the 12V auxiliary battery of my Toyota Auris Hybrid (2011) was flat. I recharged it and the car starts again, but the battery might need a replacement soon, as it is 5 years old. The battery type number is "S46B24R" which is an AGM battery. A replacement is very expensive, € 250. So I looked for cheaper, non-AGM replacements with the same size, footprint (B00), charge capacity (45Ah), pole location (+ to the left) and pole type (JIS) and found this one: It costs only € 66, almost 1/4 of the AGM battery price, while still being of the EFB type (2x longer life span compared to a normal lead acid battery, according to Varta). So my question is: can I safely replace the 12V battery in my Auris with a non-AGM one? I've done two afternoons searching online as to WHY the Toyota Auris Hybrid (and Prius 3th gen) has AGM instead of a normal battery, but I cannot find a definite answer. Some considerations: AGM is designed for safety because it is sealed and doesn't spill acids in case of overcharging. This is important in the Auris Hybrid because the battery is located in the interior of the car (in the trunk). However, the above-mentioned cheaper Varta 545157033 also is sealed. And in addition, there's a vent hose connected to the 12V battery in my Auris to lead any Hydrogen gasses directly to the outside of the car. The hose probably doesn't fit to the Varta battery but that shouldn't be too hard to solve. AGM is designed to handle higher load peak currents. But this can't be the reason that Toyota chose for an AGM battery because the Auris Hybrid gives lower peak currents than a non-hybrid car (the engine is cranked from the high-voltage battery, not from the 12V auxiliary battery) Even if the life span of the non-AGM in a hybrid car would only be 2 years instead of 5 years for an AGM battery, it still is less expensive in the long run. I hope you can help me with this. Thanks! Mark
  7. Ok, I've successfully build in the camera! For anyone who's interested, here some more information: I used an optocoupler AQY212EH (the cheapest one from Conrad that could switch at least 120mA and had a nominal ON resistance lower than 1 Ohm) to switch the 12V for the camera on and off using the 6V from the TNS350 (a relay would work too but I didn't want audible clicks in the dashboard, a NMOST also would work fine). Luckily pin B2 (12V when in reverse) was already connected to the TNS350. Here is the schematic:
  8. Thanks again for thinking along! Unfortunately I linked to the wrong pdf. Apparently Toyota also has a pdf especially for the Auris Hybrid 2010/2011 that I have (strangely enough it was categorized in the non-hybrid category). But in there no fusebox connections are mentioned, only the 4 pins from the Toyota camera. But it looks like pin 2 on the 28-pin connector is already connected on my TNS 350 (see photo), but this can also be pin 13, depending on from what side of the connector you look... Anyway, to be sure, in the weekend I will measure if this orange wire gets 12V once I put the car in reverse. Update: Yes, indicated orange wire becomes 12V when putting the car in reverse :)
  9. Hi JarnoSe, Thank you very much, that really helps a lot!! One more question: any idea where I can find the reverse signal wire in a Toyota Auris hybrid (to connect to pin 2)? Mark
  10. Hi everyone, I'm trying to install a rear view camera into my 2011 Auris. I've put a lot of effort in it but cannot get it to work, so you guys are my final hope :) I would like to connect the camera to my navigation system TNS 350 but the TNS 350 doesn't show the camera image nor lets me know that a camera is connected. The rear view camera is a generic 12V NTSC camera. I've already searched a long time on the internet and red all forums at toyotaownersclub about this topic but don't have success. I've got a couple of questions to figure out why the camera doesn't work: Which two pins on the TNS 350 should I use for video+ and video ground? Here is a photograph of the rear of the TNS 350: And here is a drawing of the 2 connectors that I believe contain the pins for the camera signal: Is it correct that the TNS 350 expects NTSC (not PAL)? Does the camera option somehow have to be enabled in a secret service menu on the TNS 350? If so, how can I access this menu? Where should I get 12V to the camera? From the reverse light? I know that official Toyota cameras work on 6V that is supplied by the navigation system itself. I've read that, when starting the car, the navigation system typically puts 6V on the camera and waits for a couple of seconds for a video signal. Is true for the TNS350? If that would be the case, I cannot use the reverse light as supply but should use the 6V from the TNS 350 to trigger a MOSFET or relay to switch on a 12V supply to the camera. What I tried so far: I've read this forum and tried the connection from the photograph but that didn't work: I found in the installation manual for the official Toyota camera that I have to use the 4 pins on the right of the 20-pins connector here. Unfortunately the manual doesn't specify which ones are 6V supply and which ones are video. I've traced back the 4 pins on the right of the 20-pins connector to the pink, blue, red/white and red/black wires in the image above on connector A (connectors A and B combine into a new 20-pins connector behind the TNS350) Tried the camera stand-alone on my tv - that works perfectly. Anyone can help me with (one of) my 5 questions? Any help would really been appreciated!
  11. Murk

    12v battery

    I just disconnected the 12V battery on my 2011 Auris Hybrid (in an attempt to install a rear view camera). Anyway, no problems happened. After I re-connected the battery, the car took a couple of seconds before the "ready" sign for the hybrid system started, but then, everything was ok. The only things that are reset: clock average fuel consumption number navigation system (TNS350) preferences, like miles / kilometers etc. And the navigation system needed 60 seconds to re-instal its firmware from the SD-card, showing something like "do not turn off power". But after that, everything was fine. So no problem disconnecting your battery. Oh, and 1 more thing: don't close the trunk after you have disconnected the 12V battery. You won't be able to open it anymore since the opening mechanism needs 12V, and you'll have to reconnect the battery again from the rear seats and that is very inconvenient (yes it happened to me... twice :P) Good luck!