MFD Failure!

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Tideland Prius, Jul 30, 2006.

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  1. Tideland Prius

    Tideland Prius Moderator of the North
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    Alright, so here's my situation


    I was at the border and I was cycling the car on and off to conserve battery (that and using the EV mod). After cycling roughly 5 times in 3-5 mins, I noticed that my Energy Monitor showed no bars, pressing the side buttons resulted in no beeps and a delayed response. Pressing CLIMATE shows "Check Connection of Air Conditioner", the radio doesn't work and pressing CONSUMPTION results in a slow delay and an empty Consumption screen with no bars, no average and the instant FE bar at full. The only thing that works on the MFD is the wheels. They still move when I move and stop when I stop.

    The car didn't let me engage EV mode and after I crossed the border, acceleration resulted in very high revs from the engine as if my battery was drained to two bars (it was at 4 bars before the failure).

    When I got home, I cycled on/off several times, using both IG-ON and READY mode but neither has resulted in fixing the MFD.

    And if there's any relation, yes I installed the DICE unit. Also, I had the steering wheel recall and 32,000km full maintenance on Wednesday.


    Any thoughts on this?
     
    #1 Tideland Prius, Jul 30, 2006
  2. Bill Merchant

    Bill Merchant absit invidia

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    In another thread, the DICE unit was implacated as the culprit. Scan the recent messages for MFD troubles and you may find it. Maybe try disconnecting the DICE?

    Found the thread.
     
    #2 Bill Merchant, Jul 30, 2006
  3. Tideland Prius

    Tideland Prius Moderator of the North
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    Yeah but I tried not to jump to a quick conclusion and assume it's DICE's fault just because someone else had it fail because of DICE.

    I will try to disconnect it and reboot the car and see if it works. The "Check Connection of Air Conditioner" might be the clue that because I didn't hear a click when I installed the DICE unit, it may have come loose.
     
    #3 Tideland Prius, Jul 30, 2006
  4. Tideland Prius

    Tideland Prius Moderator of the North
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    Hmm...

    Ok, so this morning, I decided to attempt to remove the DICE unit and reboot and see what happens. I couldn't get the DICE unit to unplug from the radio but the fiddling around with that plug and other wires seemed to have solved the MFD issue because when I turned the car to ACC to check the time, then cycled through IG-ON to turn the car off, I noticed the battery display worked. Then I checked the radio and it played, my Consumption screen is also back to normal.

    In short, I have no idea what I did but apparently there must've been a loose connection or what not that fiddling around seemed to have helped. I'll report back if any other issues arise.
     
    #4 Tideland Prius, Jul 30, 2006
  5. Frank Hudon

    Frank Hudon Senior Member

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    <div class='quotetop'>QUOTE(Tideland Prius @ Jul 30 2006, 02:17 PM) [snapback]294732[/snapback]</div>
    long time ago when doing beta stuff with the CAN-view Norm and I found out that if the CAN doesn't see what it should IE radio on the address of the buss after about 15-20 minutes the MFD goes blank. So it's possible that the CAN doesn't recgonise the DICE unit at the buss address that it's on stops the MFD signal.
     
    #5 Frank Hudon, Jul 30, 2006
  6. Tideland Prius

    Tideland Prius Moderator of the North
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    Which means...?
     
    #6 Tideland Prius, Jul 30, 2006
  7. aaf709

    aaf709 Ravenpaw of ThunderClan

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    That's interesting.

    I have a DICE and have used it almost exclusively (other than AM/FM, CD) for the past month. My commute is at least 30 minutes each way. I'll have to see if I get the same symptoms.

    I'd hate to think it was the DICE. Heck, I got the iPod because of the DICE.
     
    #7 aaf709, Jul 30, 2006
  8. Tideland Prius

    Tideland Prius Moderator of the North
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    Well, depends how well you installed it I suppose. I know I have some wires from the adapter next to the empty slot where the DICE plugs into that may be affected by the DICE plug.
     
    #8 Tideland Prius, Jul 30, 2006
  9. mikepaul

    mikepaul Senior Member

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    Soooo, is it suggested that if one hasn't gotten around to the DICE install yet, one should put it off for a while longer?...
     
    #9 mikepaul, Jul 30, 2006
  10. Frank Hudon

    Frank Hudon Senior Member

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    <div class='quotetop'>QUOTE(Tideland Prius @ Jul 30 2006, 06:03 PM) [snapback]294808[/snapback]</div>
    It could be that the DICE unit was designed to work on a standard Prius stero system instead of the JBL system and they both reside at different address on the buss. If the manufacture doesn't have a means of telling the CAN it's address it just might stall the CAN and shut down the MFD.
     
    #10 Frank Hudon, Jul 30, 2006
  11. Tideland Prius

    Tideland Prius Moderator of the North
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    ohh

    but I thought it was designed to run with the nav models which would have the JBL anyway.
     
    #11 Tideland Prius, Jul 30, 2006
  12. richard schumacher

    richard schumacher shortbus driver

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    <div class='quotetop'>QUOTE(Tideland Prius @ Jul 30 2006, 01:34 AM) [snapback]294521[/snapback]</div>
    Yeah: don't do that. The car itself does a better job of conserving the battery than can a mere human.

    Other thought: don't install aftermarket mods. The installation, the equipment, or both may be faulty, and may void your warranty or cause annoying weird behaviour. (Can you tell that I'm kinda risk averse?)
     
    #12 richard schumacher, Jul 30, 2006
  13. davidf

    davidf New Member

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    <div class='quotetop'>QUOTE(richard schumacher @ Jul 30 2006, 08:46 PM) [snapback]294881[/snapback]</div>
    Whereas I don't think anyone will argue that avoiding mods is the absolute safest way to go, none of the mods I've seen on PriusChat (for example) are anything that -- done right -- would damage anything or put anything at risk. Certainly the equipment could be faulty, but (with reasonable care) the parts added on (switches and resistors, from what I've seen) have no more potential of failing than any other component in the care. As for warranty, many people have taken in cars that had mods and not had their warranty in question. I suspect, unless they could point to the mod being the cause of the failure, that they'd have a hard time voiding the warranty because you added the mods.

    You will have to weigh the benefits of a mod (increased functionality) vs the costs of a mod (time, hassle, cost, and potential dealer issues down the road), but let's not blow the downside out of proportion...

    My $.02.

    David
     
    #13 davidf, Jul 31, 2006
  14. Frank Hudon

    Frank Hudon Senior Member

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    <div class='quotetop'>QUOTE(Tideland Prius @ Jul 30 2006, 08:15 PM) [snapback]294862[/snapback]</div>
    have you contacted the manufacture and asked them if there is a dip switch or some other way to tell the car what it is? Just a thought. If it works with nav it should know it has the JBL and know what the address is on the buss. But what you described is how my MFD shut down till we found the address for the JBL and assigned it's location to the code for CAN-view. If it's designed for the NAV models the NAV will have it's own address on the buss and if the DICE unit is using it and it doesn't exist the CAN will probably stall looking for it.
     
    #14 Frank Hudon, Jul 31, 2006
  15. Tideland Prius

    Tideland Prius Moderator of the North
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    No I haven't but the dip switches on the box are only for the DICE and iPod modes that allow it to switch between full control and simple mode.

    Well, in the iPod Group Buy thread, they have assured us it works on 04-05 Prius with and without navigation. That's the reason why I got it cause I think the VAIS model works only with nav models?

    Aftermarket mods.. well richard, it depends on what it is and how you go about installing it. Of course, don't go about doing stuff if you have no idea what you're doing.

    The stuff I've done so far are more or less reversible (except maybe the EV mod which is the most difficult to reverse). I can remove the headlights, the pedals, the emblems, the mats, the interior lighting kit and the DICE if I had to.
     
    #15 Tideland Prius, Jul 31, 2006
  16. Frank Hudon

    Frank Hudon Senior Member

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    <div class='quotetop'>QUOTE(Tideland Prius @ Jul 30 2006, 10:52 PM) [snapback]294933[/snapback]</div>
    and the EV mod as well.
    I assume you have it in full control mode have you tried it in simple?
     
    #16 Frank Hudon, Jul 31, 2006
  17. Tideland Prius

    Tideland Prius Moderator of the North
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    That's for the iPod only. I don't have an iPod, I have a "regular" mp3 player so I'm using AUX Input.
     
    #17 Tideland Prius, Jul 31, 2006
  18. aaf709

    aaf709 Ravenpaw of ThunderClan

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    <div class='quotetop'>QUOTE(Tideland Prius @ Jul 30 2006, 08:15 PM) [snapback]294862[/snapback]</div>
    IIRC, the 2005 car used for the beta test had the NAV and JBL.
     
    #18 aaf709, Jul 31, 2006
  19. Frank Hudon

    Frank Hudon Senior Member

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    I don't know Tideland but what your describing is how the wife's MFD shut down when it didn't have the proper CAN address for the JBL. It would be interesting to find someone that has one installed in a non-Nav JBL equipped Prius and has no trouble using it with a MP3 player instead of the I-pod.
     
    #19 Frank Hudon, Jul 31, 2006
  20. Tideland Prius

    Tideland Prius Moderator of the North
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    Yeah but aaf, I have the JBL but no nav.

    Frank, well that'll be hard haha. Most people here have iPods
     
    #20 Tideland Prius, Jul 31, 2006
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