Problem developed - Triangle!

[SpeedyG40]

Originally Posted by bwilson4web

Where did you get it and how much?

Thanks,
Bob Wilson

I bought it on ebay for around $1250 and I bought software for around $400. Far from cheap, but it is amazing. It will work on all Toyota/Lexus models up to 2008. Search Toyota diagnostic tester.

[SpeedyG40]

Patrick Wong wrote " I'm wondering what you did to get your car running. Did you replace the traction battery?"


I did not replace the traction battery.

There is a function on the Toyota Diagnostic tool that allows main battery recharging, but I did not use it due to unfamiliarity.

I did it by using the diagnostic tool. I had it plugged in while watching the HV ECU parameters. This allowed the car to idle and charge the battery. I also turned on the A/C to max so the engine would stay running. It worked.

[SpeedyG40]

[QUOTE=mrmose;949939]I replaced the origional 12 volt in my 2001 this past weekend. When I reconnected, I got the following:
Red triangle of death,
check engine light
one bar on gas level (it was fiull)
rectangle on MFS with car sign and !

This just happened to my wife's 2002 Prius (90Kmi) (I have a 2002 too-145Kmi). The car was in the body shop for a wife vs. pole incident (small tap). The guy disconnected the battery to work on the damage, then upon reconnecting the car did the same as you described. Now, here is where the fun comes in. The body man called the dealer and the dealer and they said it has to come in and be checked...etc. "nothing else can be done" (not very helpful). The body man just cycled the key and the car fixed itself except for a check engine light. I found Codes P3191 & P3101 which I have gotten a few times on both cars. [I just got a warranty enhancement letter from Toyota regarding this known issue. They say it's most commonly due to a dirty throttle body.]

I googled and one site said if you turn on and off 4 times, it will reset. I did this and all but the check engine light went off and the car ran fine. I drove it around the block and the check engine light went off.

This is definitely true! This works most of the time, but not always. I have had the screens and warnings stay lit after cycling the key multiple times. While the car ran perfectly, it won't reset itself. This got me home thankfully.

My wife drove it to work on Manday and half way there, she got all of the warning lights that I got after the battery replacement. She called me and said the car was running fine and went to work. When she left to come home, she started the car and got all of the warning lights. but the car was running fine and then half way home, she said the brake light also came on and it felt like someone was appplying the brakes.

This happened to my wife once. She ran the car out of gas (two bars were still showing) and ran the traction battery (HV battery) down too low.

[mrmose]

Originally Posted by ca02prius

I'd like to know how you got the dealer to spring for the $4,598.63! I was dismayed to have to pay $1,681.12 (after discount coupon) to replace engine ECU and gas tank at 90K for my 2002 Prius (codes 3191 & 3101/PO440).

Having never had any problems prior to that, I guess I just never learned how to work with the service dept.

The dealer did not pick up the tab, Toyota paid paid the bill.

The new battery has been in the car for two weeks now and I have driven about 300 miles. Milage is only 40 MPG, I use to get 43 MPG.