Technical stilo juddering on cold pull away and error codes from diagnostic

[benjishearer]

i took my car for a diagnostic the other day i got 2 codes come up one was p0571-cruise control/brake switch a circuit malfunction
other was
b1029-rear air thermo sensor inactive(apperantly i found it on google please tell me if diffrent)
now i dont no how i go about solving these issues im not very good with cars lol soo please help someone. my car keeps juddering when pulling away while engine is cold any ideas? thanks

 

[Deckchair5]

For the p0571-cruise control/brake switch a circuit malfunction
I'd replace the brake light switch as they're a known problem, wear out anyway and are pretty cheap to buy

b1029 is manufacturer specific code.

Haven't said whether you have climate control?
Might be "rear air thermo sensor inactive" as you've found or on some cars B1029 is the driver's side airbag connectors. Duh!

 

[benjishearer]

whats rear thermo sensor mean then and ow do i go about solving it. i havnt got cruise control. i fink the brak malfunction may be a old error code as i checked the brakes in evry aspect possible and there fine. any ideas on the juddering??? thanks