Hi, my car acts wierd after 40 to 50 mins driving, it drives fine first around 40 mins, but then Check brakes appears and ready start blinking and beeping, car stops it self. push gas dosent move. if I push break pedal, it makes griding notice while stopped. I have to turn it off and start it again, will drive fine for next around 30 seconds then it does it again. if I leave the car off for sometime around 1 hour it will drive another around 40 mins fine. I went to friend of mine he pulled code C1237 pressure Sensor signal . so question is it HPU? and if get used one and I can replace it or it has to be programmed? Where this pressure sensor located? other then that car drives fine. Thank you for your help.
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