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I have 2012 Toyota Prius V. First the Check engine light

I have 2012 Toyota Prius...
I have 2012 Toyota Prius V . First the Check engine light came on with exclamation mark in car-shape on the right. then two minutes later the car shut down . we scanned it and got the code P30190. we cleared the code and the car started . What is the meaning of this code? and thank you.
JA: Does the light stay on, or does it blink?
Customer: the light is gone
JA: Are you fixing your Prius yourself? What have you tried so far?
Customer: I scanned it and got this code , then I cleared it. and no I am not going to fix it myselfe.
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
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Answered in 56 minutes by:
9/6/2017
Ted Ritter
Ted Ritter, Toyota Master Tech
Category: Toyota
Satisfied Customers: 4,492
Experience: Toyota Master Tech, ASE Certified
Verified

Hello, there are too many numbers in that code, could it be:

P3019-123 Battery Block 9 Becomes Weak
1. HV battery assembly 2. Battery smart unit
You should contact the Toyota dealer, this should be covered under the hybrid warranty 10years/120,000 miles.

Ted Ritter
Ted Ritter, Toyota Master Tech
Category: Toyota
Satisfied Customers: 4,492
Experience: Toyota Master Tech, ASE Certified
Verified
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Customer reply replied 3 months ago
Hi, The code was 3190
Toyota Service
Toyota Service, Toyota Dealership Service & CR Manager
Category: Toyota
Satisfied Customers: 8,104
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