my prius broke today

gotta rely on the diagnostic codes they find at the dealership and go from there. unfortunately without those we're all in the dark.

 

Good Luck, Ill keep my fingers crossed for you.

 

That's great news. Now it's time to name the dealer. We are quick to complain about poor dealers. We should be equally quick to praise good dealers.

 

Gee, did they have a few deliveries to make and preferred to use YOUR gas instead of their own??

 

x2. Many service folks unfortunately seem to resort to replacing parts until the codes go away... looks like the guy you got actually used his brain and eyes to actually figure out what the true cause of the problem was without replacing everything.

Mike

 

Wth is that mean greetat? spam? reported as suspicious to a mod

 

I think greetat has come and gone. 5 quick posts and nothing lately. I reported two other of greetat's posts earlier this evening.

 

Hi Ron,

My dad's 2007 also had ABS and VSC lights and produced the feeling that the brakes were bad. DTC C1247 was logged. The first time he took it to the dealer, the tech cleared the code and could not find any reason for the problem.

The second time (< 300 miles later), the tech found that the code could not be cleared, the zero point calibration could not be performed, and the linear valve could not be initialized. So the skid control ECU was replaced under warranty at 9,957 miles, part # 89540-47100.

The skid control ECU has an MSRP of ~$1,400, so $1,000 is a good price.

 

have you checked the voltage of the 12v battery?

 

Oh gosh, that sounds scary.... So what if there *is* a car (or even worst, someone) behind you? Oh I guess you can use the e-break to stop it.. But still, this is scary....

 

I have had the same issue with my '06 Prius - twice! The first time the dealer reset the computer and said that "it happens sometimes once to a Prius". The second time was last week. It was at the dealership for 6 days and they cannot tell me what was wrong with it! They cleared the code and could not get the problem to occur again.

Both times the Brake, !, ABS and VSC lights all came on and the brakes barely worked. I was told by the dealer that I still had "service brakes" or front brakes only. All the diagnostic tests came back fine.

I'm hoping that it doesn't recur during the winter, stranding me with my young daughter. We got stranded last Saturday and had to be towed, but at least it was warm and not raining outside.

My dealer is stumped as to the cause of the problem. Has anyone else had the same issue! (no concrete diagnosis?)

 

Hi Marion,

I suggest that you ask what DTC was logged on your vehicle. If DTC C1247, then there are only three problem areas: the brake pedal stroke sensor, the skid control ECU, or the wiring harness connecting the two.

Since the dealer has been resetting the skid control ECU, they have clear evidence that the problem has been happening to you and that you are not creating an issue out of thin air. It is not right that they release the car to you twice without taking action to remedy this important safety issue.

If this were my car, I would ask the service dept to perform the diagnostic process again and to consult with Toyota tech support as needed. If no problem can be found, then they should replace both the stroke sensor and the skid control ECU under warranty. Better for them to do that, than to send you out for the third time with an unsafe car.

 

Thank you Patrick. My invoice says that the Stroke sensor will be replaced if it happens again. I have put in a call to the Service advisor to ask for the code that they found.