Question about 2002 Toyota Prius

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2002 toyota prius warning light - car with exclamation mark

Warning light on dash on. Car starts and runs for about 10 seconds and then dies. Each time you restart it, it seems to run for less periods of time. The 12 volt battery continiues to lose charge each time. And then gets to a point where it won't even start. The car had been sitting for about 6 months and battery had lost charge!

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The light that looks like a car with an exclamation mark in the middle of it is the HYBRID WARNING light (see diagram below) You must scn the onboard computer network to determine why this light is coming on. You also need to scan your computer system to find out why the engine keeps dying. If the hybrid batteries are discharged, they must be properly recharged to prevent serious damage.

CAUTION: Read ALL service and warning lables in the engine compartment before attempting ANY type of service on a hybrid vehicle. The wiring harnesses that have ORANGE connectors are HIGH VOLTAGE connectors and can cause serious injury or death.

DO NOT touch any wiring harness or component that has a HIGH VOLTAGE warning label on it.

My recommendation is to tow the vehicle to a qualified hybrid repair center (preferably the dealer) and get it properly diagnosed and repaired. The high-tech, high voltage systems in this vehicle is nothing for anyone but a trained, certified technician to be messing with.


2002 toyota prius warning light - car with exclama - 5_21_2012_12_29_44_am.jpg

Posted on May 21, 2012

  • alanwms
    alanwms Dec 25, 2012

    Yeah - that's a joke. The fault code for this problem is a global number and people at Toyota don't know why this occurs.

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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Lovebytes

Dave Richardson

  • 10 Answers

SOURCE: 2001 Toyota Prius - A warning light with exclamation mark on a car appeared on the MultiVisual Display Unit

I had the same problem. I unplugged the relays from the fuse/relay box under the bonnet. (Top left side) and replaced them. The problem disappeared. (2001 Prius 109,000 miles)

Posted on Aug 21, 2008

Lovebytes

Dave Richardson

  • 10 Answers

SOURCE: Toyota Prius 2001 Warning Light With Exclamation Mark on a car.

I had the same problem. I removed the relays from the fusebox under the bonnet/hood (top left side) and then replaced them. All working OK now. Sometimes I have had a problem when I start the car (especially after rainy day) the petrol engine immediately dies and I can only drive in electric. I have found that if I turn the ignition off and then restart it and immediately pump the accelerator it makes the engine run OK. Hope this helps.

Posted on Aug 21, 2008

jimmybrown67

JIMMY BROWN

  • 835 Answers

SOURCE: My master warning light appeared

well what happen is w/batery dead the computer detected a problem if battery is full now & cranking fine just reset computer unhook neg, cable this reset it they usaly reset thm self after 30-50 cranks if no problem is found

Posted on Dec 06, 2010

Anonymous

  • 507 Answers

SOURCE: 02 prius no power unless car is running- no interior lights

hows your battery?,for the engine, not the electric motor,Prius,normally dont have any quirky issues with electrics,and behave normally if the car batery is flat,ie...it will behave like any other car if the normal battery is flat or old,check by jumping,(fuse box under hood has terminal for + and put neg(black) on suspension bolt ) 3 each strut top.That should work to see if thats your problem

Posted on Nov 28, 2009

toyotahelp

theodore ritter

  • 475 Answers

SOURCE: have a warning light on the dash of my Toyota Estima Hybrid 2002. It's a red car with an exclamation mark in it. Flashes every now and then, then the engine switches off. Do you know what's ca

There are quite a few things that can cause this light to turn on and yes you are right it has something to do with the hybrid system, unfortunately this going to require that a suitable diagnostic scantool be connected that can communicate with all the onboard computers, this will retrieve any diagnostic codes that are stored, a technician can then start to diagnose the system based on the trouble code information.

Posted on Feb 18, 2012

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