P2519 Need help. Car does not start.
Thread Starter
Driver School Candidate
Joined: Sep 2023
Posts: 18
Likes: 4
From: British Columbia
P2519 Need help. Car does not start.
When I got this car about a month ago, it had the check hybrid battery light, but still started and drove.
I just finished installing a new hybrid battery from Nexcell and put everything back together.
Now when I press start one time to Accessories, the center console lights up and I can adjust the radio etc. But the drivers dash panel is dark. This could be normal but for some reason I noted this down. When pressing the second time, the dash and all the lights light up. Still have check hybrid battery warning. However, I noticed there are no instructions to tell me to "press the brakes" and press start. When I press on the brakes, I see the start button light go green, but the car just turns to off when I press start.
Dr Prius app shows all battery modules are ~16.4V and within 0.05V from each other. The "12V battery" says 11.6V.
I confirmed the 12V battery is good at the local hardware store yesterday, however, it was low on charge. I charged it up and this morning it showed 12.8V unplugged. As we speak, the battery is hooked up to the car and reading 12.13V.CODES:
Cleared all codes and now P2519 code shows up - AC request A - circuit malfunction.
I found some info on this code - https://f01.justanswer.com/FrancisC0...c841_P2519.pdf
So it looks like it is not referring to the air conditioning, but the cooling of the hybrid battery?
I have the hybrid fan connected, but it is not attached to the battery/ducting itself at this time.
The only thing I can think of is because the nexcell batteries are designed to work the with prius temperature sensor clips, I ended up clipping my temperature sensors to the "Top side" of the hybrid battery, and not the "bottom side" of the battery like that in the stock NiMh battery. Although, I can't think of why this would make a difference and not allow the car to start?
I'm charging the 12V battery more at this time to see if it makes a different.
Any help is appreciated!
I just finished installing a new hybrid battery from Nexcell and put everything back together.
Now when I press start one time to Accessories, the center console lights up and I can adjust the radio etc. But the drivers dash panel is dark. This could be normal but for some reason I noted this down. When pressing the second time, the dash and all the lights light up. Still have check hybrid battery warning. However, I noticed there are no instructions to tell me to "press the brakes" and press start. When I press on the brakes, I see the start button light go green, but the car just turns to off when I press start.
Dr Prius app shows all battery modules are ~16.4V and within 0.05V from each other. The "12V battery" says 11.6V.
I confirmed the 12V battery is good at the local hardware store yesterday, however, it was low on charge. I charged it up and this morning it showed 12.8V unplugged. As we speak, the battery is hooked up to the car and reading 12.13V.
Cleared all codes and now P2519 code shows up - AC request A - circuit malfunction.
I found some info on this code - https://f01.justanswer.com/FrancisC0...c841_P2519.pdf
So it looks like it is not referring to the air conditioning, but the cooling of the hybrid battery?
I have the hybrid fan connected, but it is not attached to the battery/ducting itself at this time.
The only thing I can think of is because the nexcell batteries are designed to work the with prius temperature sensor clips, I ended up clipping my temperature sensors to the "Top side" of the hybrid battery, and not the "bottom side" of the battery like that in the stock NiMh battery. Although, I can't think of why this would make a difference and not allow the car to start?
I'm charging the 12V battery more at this time to see if it makes a different.
Any help is appreciated!
Thread Starter
Driver School Candidate
Joined: Sep 2023
Posts: 18
Likes: 4
From: British Columbia
Reassembled the battery and checked all connections. I also inspected the DC/DC converter and did not notice any bad solder joints or burnt components.
No more codes and car starts. No more check hybrid lights.
But now other non hybrid issues.
Thanks for the help.
No more codes and car starts. No more check hybrid lights.
But now other non hybrid issues.
Thanks for the help.
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