Prius (Gen 2) :: CEL And Triangle Are On / Can't Connect OBD II


Mar 27, 2013

I am unable to connect to a 2005 Prius. I have an Actron CP9190/CP9185 Elite Autoscanner. I have used it many times on other cars and many other Prii but it won't connect to this particular car. ( I have a small car lot and keep 8-12 2004-2009 Prii in inventory) I tried 3 other Prii that I have on my lot and they connect immediately and power up but this one won't.

When I first got this car in it had some lights on and I hooked it up and it worked intermittently. I had to hold the connection just right or I would lose connection. This car had some aftermarket Bluetooth or GPS system that was removed before they traded it and I had my mechanic remove the bird's nest of wires next to the OBD connector that weren't connected to anything. This was about a month ago. This car is a 2005 with 129k.

I had the battery rebuilt before I sold it. The new owner has put over 2000 miles on it since. Now the CEL and triangle are on again and I am trying to see what the codes are but can't connect. Is there a fuse that powers the connector? or is one of the pins a power supply?

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I have the X-Horse firmware updater tool installed, so I can check that the cable is indeed recognised by and connected to the computer. When I launch TS, I check the setup, and can see that TS recognises and is connected to the cable. But when I try to connect to vehicle, I get the "Cannot connect to VIM" error.

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I bought a fully loaded 2004 Prius last summer with Navigation and bells and whistles. (I love it - even with 110,000 miles!) At the time I had a 3G Iphone (AT&T) and the bluetooth worked for phoning and the cord that came out of the compartment under the stereo worked for me to plug in my phone and play music. Of course there was no music display and I had to get the music going first and I couldn't view it at all while it was plugged in. (Meaning if I wanted to see the song or change to a new playlist I had to unplug it.) But nonetheless I was STOKED to have my iphone music playing. It also charged my phone.

A few months I upgraded to an Iphone 4S, and now when I plug my phone in I can't play ANY music!! (Bluetooth for phone works fine.)

Questions:

1. So I always assumed the cord came with the Prius although I guess the first owner could have put it in? Do that model came with one?

2. Most importantly: How can I play music from my 4S phone the simplest easiest way.....

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