Thread: Odd behavior today...

Quote: Originally Posted by hobbit Yes, the Scangauge is causing this. I occasionally get the same thing, and it's because the SG somehow momentarily takes out the CANbus so the car's ECUs can't see each other. That's a horrendous, show-stopper error as far as the car's concerned which is why it falls out of READY mode along with. The blinking shift-position display is to indicate "network failure"....

Quote: Originally Posted by msirach I had those same codes come in 2 times on the 08 when I connected my older scangauge that had some issues. I quit using it on the 08 and the other SG worked fine. Does the backlight work ok on the SG? Cable/connections all nice and tight? Whoa... the scangauge might have caused this? When I was trying to get the codes yesterday I checked all of those connections, and I know my chained second gauge has a way...

re-read the thread real quick. Interesting negotiation bug. I guess the XGauge Database should also mention to do the following on the "first connect" of any SGII: Connect the SGIIx with the car OFF Set (for Prius) the Protocol to CANSF (MORE>MORE>MODE) Clear all (or just solicited) XGauges (MORE>MORE>MORE>XGUAGE) by blanking the TXD field Only after all of the above are done, power up the...

It was easy for me to pin down as we were loaded up for a 700 mile road trip. I had forgotten to plug the scan gauge in before we left home so I plugged it in on the fly while still in town. The dreaded red triangle came in almost immediately and the car died. I pulled into a gas station, unplugged the sg, and shut the car off. I scratched my head for a minute (while my wife was beating me). I plugged in the sg and rebooted the car. Read and...

Wow, you can make the wife scream without buying any extra hardware! . _H*

Quote: Originally Posted by msirach I scratched my head for a minute (while my wife was beating me). I plugged in the sg and rebooted the car. Read and cleared the codes and took off. Curiosity got the best of me so about 10 miles from home, I unplugged the scangauge, waited a few seconds and plugged it back in. Same thing happened:Red triangle, ice died, wife screamed. It's only 8:30 and you've already made my day.

Quote: Originally Posted by JusBringIt In the manual for the sg, it said you should only connect to the obdII port before the car is turned on and disconnect after the car has been turned off. My manual is identical to the online manual. It states: 4) Turn the vehicle on. If it can be run, start it. If it can’t be run, turn the key to the “run” position. This is the position it is normally in when the vehicle is being driven. 5) Plug the...

What was the code on ScanGage or another OEMII reader? Once that is known, this becomes a lot clearer. Sincerely hope it's a hiccup.

Perhaps try a 12V disconnect? I don't know if that is beneficial in a Prius or not but it might clear the state?

The following is all based on my experience in the VW world. Flash gear indicators often seem to indicate a transmission limp mode or error. With your cooling fans running, I'd guess that your car thought your transaxle or something in it was too hot. Is there an MG in there? I'd check the transaxle coolant level, if there is such a thing in the Prius. Also I'd try to check if the temperature sensors are working correctly....