2010 Prius Red Brake, Antiskid and ABS Fault

So not sure if this fits your needs, but yesterday I received
an update to the ZJB Customer Support Program. This has been around for awhile but was limited to certain production periods. You may want to ask your local dealer if your cars is covered by this updated letter.

I has all these symptoms and spent a large amount of money getting the Brake booster and pump replaced. I will be contacting Toyota to see if I can get reimbursed.

Coverage is as follow:
The Primary Coverage will be offered until November 30, 2019 regardless of mileage.
After the Primary Period the Secondary Coverage is 10 year 150K miles from first use date.

Good luck

 

you need tech stream. sometimes you can get away with torque, elm, scan gauge, dr prius, etc., but you won't know until you try.

 

OBD II, as defined in the SAE J1978 and J1979 standards, provides only for engine and emissions-related diagnosis. For other systems on the car, you’ll need a Toyota Techstream diagnostic system or a third-party equivalent that can communicate with the relevant electronic control units (ECUs), such as the skid control ECU for the brake system, or the power management control ECU for the hybrid system. I don’t know which, if any, of Foxwell’s products might have such capabilities.

For the problem you describe, however, you may not need an external diagnostic tool at all, since the electronically controlled brake system can display its stored diagnostic trouble codes by blinking the ABS warning, brake warning, and slip indicator indicator lights.

To use this feature, connect a jumper wire between the TC and CG terminals of the data link connector, start the car, and count the blinks. For details, see the Repair Manual topic Brake: Brake Control/Dynamic Control Systems: Electronically Controlled Brake System: DTC Check/Clear, and look under the heading “DTC CHECK/CLEAR (When not Using the Techstream).” @ChapmanF has also posted about this in other threads.

 

Was gonna say speed sensors which I believe is built into the wheel bearing assy or bad ABS pump/recall.

 

Before grabbing the wrenches, it's still useful to remember that when the car's computer gives a code that has "speed sensor" as its fortune cookie, that doesn't mean "go replace the speed sensor", it means "I'm getting a weird speed sensor signal, go find out why."

That involves checking other stuff like connections and wiring, not just jumping to the sensor itself. The Repair Manual will have a sequence of steps to help troubleshoot.

-Chap

 

I have this same problem on my 2010.. did you ever find the solution? Thank you very much

 

speed sensor

 

i was thinking the cruise control might be a clock spring problem as it fixed it on my 2008 but on the 2010 with all of these other issues, looks like it's something else after reading up a little bit...

 

agreed

 

Make sure all the speed sensors are connected? That's low-hanging-fruit, pretty easy to do even without wheel removal.