My prius won't start anymore!

Hi all! I need your help! I search the forums before posting but I didn't find all my answers.

Last week the car was running fine but one morning when I was going to school, I noticed that the ABS system was starting to lightly triggered on dry asphalt... I parked the car normally when I arrived, put the "hand brake" and went to my class. When I came back the car didn't start the first time. The lights ( ! ) (ABS) were on. I thought I forgot to release the "handbrake" but that wasn't the case. I succeed to start the car by pushing/"pumping" the brake pedal (it's may be not related but it worked) and on/off the power button. I came back home, turned off the car and tried to start it again but it doesn't anymore and I still have the lights ( ! ) (ABS) on . Well, it "starts" but it doesn't go on Drive/Backward and the ready light doesn't come on.

I scanned the car with Techstream and I have the codes C1311 C1313 C1377. I checked the fuses and the relays and everything seams to work. The battery delivers 12v.

I want to fix myself because I don't really have the budget to go to the dealer but I don't know where to start checking.

Thanks!

 

Hi all! Sorry for not giving any update on the case! Well, I didn't have any until today. Haha. With the university, I didn't have time to look at the Prius but now that I finished, I have time to fix it. First, I will answer our devoted mates!

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-I said 12v to summarize and to not be asked about it because it's a new one from January 2019. Actually, I drained it while diagnosing with Techstream, haha, but just consider it delivers to the correct voltage. I have a temporary solution and I'll try to get a new one from warranty.

-I don't because I don't have one! It's dumb I know, but hey.

-Here we use kilometers so it's about 180 000 miles. Just consider that we have big temperature gaps during the year so the lifespan can be less than elsewhere.

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After I posted on the forum, I cleared the codes (C1311, C1313, C1377) and they didn't come back and when I had them, I didn't click on the snowflakes so I don't have this information but since the lights don't come back it's maybe not related. I don't know. May be I needed to do that first but I am not a mechanic technician so my troubleshooting is pretty eclectic. haha

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THAT SAID, today with pure luck I discovered something. When I push the brake pedal a little bit until I hear the triggering click from the brake pedal switch and that I hold the brake pedal at this position, the car starts! I tried like 10 times and it starts every time! The READY light comes on and the ( ! ) (ABS) SKID light comes off. Everything seams to run fine! I also tried many times when I push the brake pedal "all the way" (like I always did) to start the car and it won't start at all.

It explains why I succeeded to start randomly the car in the past while having this problem. I just randomly pushed the brake pedal at the right position...

Now, do you think that the problem can be the "Brake pedal switch" or the "Brake Pedal Stroke Sensor"? I hope because these are relatively cheap. The fact that I noticed that the ABS system was starting to lightly triggered on dry asphalt (the morning just before I had the problem) makes me believe that the problem can be elsewhere. I don't want to buy a freaking Skid Control ECU! XD

With these informations guys, can you conclude something?

 

Hey guys! Last update, I just changed the brake light switch and the car starts without problem! That's the "SWITCH ASSEMBLY, STOP LAMP" Part Number: 8434030110.