Uh Oh... MFD issue or not?

**Tideland Prius** · 02-09-2007, 01:50 AM

I seem to be having two issues that I'm not sure if they're normal or not since I rarely pay attention until recently.

1. The MFD is slow to change screen whether it's the physical buttons or the on-screen buttons. However, after pressing the buttons (same one or different one, doesn't make a difference), the speed of the change increases. It can't be the temperatures since it's been above 0 all this time (heck it reached 11°C today). Any ideas?

2. Umm, I don't know if this is normal but if I leave the car in IG-ON for a few mins, then start the car, then check the MFD when the engine starts, I see 5 mins of 10L/100km (or I guess the equivalent of 25mpg?).
The issue is that it hasn't been 5 mins since I started the car. How come it's registering when I'm in IG-ON?? i.e. it appears that the engine is off for the last few mins, then on for a few seconds and when it reaches "5 mins" that bars comes on despite the fact that the car was in READY for *fewer* than 5 mins on all occasions that I checked.

_echo · 02-09-2007, 02:26 AM

Sounds like you're getting a lot of AVC-LAN errors (or traffic?)

What kind of peripherals do you have? any aftermarket ones? if so, remove them, and see if the 'slowness' is fixed.
Question for someone else: where are the term resistors located in AVCLAN. IIRC, one is in 0x190 (HU-head unit but I don't know if there's another one? If the term resistor is intermittent, bad stuff with LAN messages might happen. Overall, the stock peripherals are very tolerant to errors, but aftermarket items tend to freak out when giiven error conditions. if you really want to see if it's AVC LAN problems, look up product diagnostics menu.

2) Hmm.. Haven't ever tried that before. In Ig on, 0x1C6(gateway) _is_ generating messages though.. heck, the can bus is live at that point, and the system main relays are engaged..

**Tideland Prius** · 02-09-2007, 07:11 PM

I have the DICE unit

galaxee · 02-09-2007, 10:57 PM

<div class='quotetop'>QUOTE(Tideland Prius @ Feb 9 2007, 01:50 AM) [snapback]387325[/snapback]</div>

Quote:

However, after pressing the buttons (same one or different one, doesn't make a difference), the speed of the change increases.
[/b]

this situation interests DH greatly.

so. can you explain this sentence i quoted better? neither of us is getting it.

direct quote... "i shall conduct an experiment tomorrow!" [hand hitting hat] :P

**Tideland Prius** · 02-10-2007, 03:39 AM

Basically, if I keep pressing the buttons and keep changing the screen, it'll eventually get back to its normal rate of change. (I don't know if changing the screen warms up the screen or not lol).

But basically, the first few changes will be slow as if it's -40 outside

hobbit · 02-14-2007, 10:55 PM

If you're getting just the very beginnings of the bad-solder-joint
MFD problem, that could be temp-related too. Things expand, and
connections are reaffirmed for a while... just a WAG.
.
Is the avclan actually terminated? It's slow enough, does it
actually matter? CAN, yes, but what's avc, like 10 KHz or something?
.
_H*

02-09-2007, 01:50 AM	#1
Tideland Prius Moderator of the North Join Date: Oct 2004 Location: Canada Posts: 19,606 My Car: 2010 Prius Model: N/A Package: Technology Package (Canada) Thanks: 227 Thanked 344 Times in 243 Posts Friends: 23	I seem to be having two issues that I'm not sure if they're normal or not since I rarely pay attention until recently. 1. The MFD is slow to change screen whether it's the physical buttons or the on-screen buttons. However, after pressing the buttons (same one or different one, doesn't make a difference), the speed of the change increases. It can't be the temperatures since it's been above 0 all this time (heck it reached 11°C today). Any ideas? 2. Umm, I don't know if this is normal but if I leave the car in IG-ON for a few mins, then start the car, then check the MFD when the engine starts, I see 5 mins of 10L/100km (or I guess the equivalent of 25mpg?). The issue is that it hasn't been 5 mins since I started the car. How come it's registering when I'm in IG-ON?? i.e. it appears that the engine is off for the last few mins, then on for a few seconds and when it reaches "5 mins" that bars comes on despite the fact that the car was in READY for fewer than 5 mins on all occasions that I checked. __________________ 2005 Tideland Pearl Premium Package 25/10/04 VVT-i Emblem, Sport Pedals, All-Weather Mats, Cargo Mat, EV Mod, JDM Prius Footwell Lighting, DICE iPod Kit 2008 Deep Black smart fortwo passion coupé - sold (6.1L/100km) 2010 Blue Ribbon Metallic Technology Package 29/08/09 All-Weather Mats, Homemade Console Pads, LED lighting "Ask an Expert" on Facebook I am not employed by Toyota, and the opinions expressed by me as a Prius Expert are not those of Toyota.

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02-09-2007, 02:26 AM	#2
_echo Member Join Date: Jun 2005 Location: Orange County Posts: 74 My Car: Model: Package: Thanks: 0 Thanked 2 Times in 1 Post Friends: 0	Sounds like you're getting a lot of AVC-LAN errors (or traffic?) What kind of peripherals do you have? any aftermarket ones? if so, remove them, and see if the 'slowness' is fixed. Question for someone else: where are the term resistors located in AVCLAN. IIRC, one is in 0x190 (HU-head unit but I don't know if there's another one? If the term resistor is intermittent, bad stuff with LAN messages might happen. Overall, the stock peripherals are very tolerant to errors, but aftermarket items tend to freak out when giiven error conditions. if you really want to see if it's AVC LAN problems, look up product diagnostics menu. 2) Hmm.. Haven't ever tried that before. In Ig on, 0x1C6(gateway) _is_ generating messages though.. heck, the can bus is live at that point, and the system main relays are engaged..

02-09-2007, 07:11 PM	#3
Tideland Prius Moderator of the North Join Date: Oct 2004 Location: Canada Posts: 19,606 My Car: 2010 Prius Model: N/A Package: Technology Package (Canada) Thanks: 227 Thanked 344 Times in 243 Posts Friends: 23	I have the DICE unit

02-10-2007, 03:39 AM	#5
Tideland Prius Moderator of the North Join Date: Oct 2004 Location: Canada Posts: 19,606 My Car: 2010 Prius Model: N/A Package: Technology Package (Canada) Thanks: 227 Thanked 344 Times in 243 Posts Friends: 23	Basically, if I keep pressing the buttons and keep changing the screen, it'll eventually get back to its normal rate of change. (I don't know if changing the screen warms up the screen or not lol). But basically, the first few changes will be slow as if it's -40 outside

02-14-2007, 10:55 PM	#6
hobbit Senior Member Join Date: Mar 2005 Location: Bahstahn Posts: 3,619 My Car: Model: Package: Thanks: 0 Thanked 216 Times in 118 Posts Friends: 0	If you're getting just the very beginnings of the bad-solder-joint MFD problem, that could be temp-related too. Things expand, and connections are reaffirmed for a while... just a WAG. . Is the avclan actually terminated? It's slow enough, does it actually matter? CAN, yes, but what's avc, like 10 KHz or something? . _H*