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Ron, ASE Certified Technician
Category: Toyota
Satisfied Customers: 35527
Experience:  ASE Certified Tech
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I have c1256/c1259 codes 2003 prius ,no lights just codes

Customer Question

I have c1256/c1259 codes 2003 prius ,no lights just codes
Submitted: 2 years ago.
Category: Toyota
Expert:  Ron replied 2 years ago.
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

Both the code C1256 as well as C1259 indicate a problem with the ABS system and in order to determine what is failing testing will need to be performed. See the pinpoint tests in the link below.
Customer: replied 2 years ago.

what about bleeding the lines

Expert:  Ron replied 2 years ago.
If you do not have a soft break pedal then its not like air in the system.