What causes a fault code on a Toyota Prius?
Any anomaly between these sensors will cause fault codes to be registered. When the system is switched on, the master cylinder isolation valves are closed, the stroke sensor solenoid valve is opened and the rear brake linear valves V8 and V10 are closed (as can be seen in the picture, below).
How are the linear valves in a Toyota Prius controlled?
The linear valves are not on/off valves, they are controlled by a Pulse Width Modulated current (PWM), which gives very precise control of the pressure in the brake calipers. Opening the apply valves allows pressure to build in the calipers. Opening the release valve allows the pressure to vent to the master cylinder.
When to replace the brake pads on a Toyota Prius?
Brake pad replacement on the 2004-09 Prius does not require any special tools, but fault codes ‘C134x Hydraulic System xxx Malfunction’ may be generated when the brake pedal is pressed for the first time, to bring the brake pads into contact with the brake disc.
Can you clear ABS code on Toyota Prius?
Toyota doesn’t recommend clamping the brake hose and venting the caliper at the bleed nipple during piston retraction. ABS/VSC codes cannot be cleared by removing the battery negative. Codes can be cleared by using a scan tool.
How do you Bleed the rear calipers on a Toyota Prius?
Select ‘bleed rear left’ or ‘bleed rear right’ from the menu and follow the instructions. Alternatively the rear calipers can be bled using accumulator pressure, but great care must be taken and you will raise fault codes which will have to be cleared.
What was the problem with the MFD on the Prius?
I’m going to start this page by giving credit where credit is due: Hobbit did the initial investigation of the 2004-2005 Prius Multi Function Display (MFD) communication failure issue, and everything I’ve done so far has been built on the work he has shared on his web site. 1.