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Chevy expert, ASE Certified Technician
Category: Chevy
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Experience:  30 yrs experience ase cetified tech shop owner
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Check engine light on traction control light on loss of power

Resolved Question:

check engine light on traction control light on loss of power steering rough shifting 2006 chevy cobalt. trouble codes p0700 and U0073
Submitted: 4 years ago.
Category: Chevy
Expert:  JHoop replied 4 years ago.

Happy Holidays and thank you for choosing JustAnswer.com.

Are you a tech with modern tooling and a database? If not please give me all you can about the issue.

Customer: replied 4 years ago.

06 cobalt Periodically will loose power steering shift rough and show the traction control light along with the check engine light. the codes are p0700 and u0073, nothing else has happened

i have a basic scan tool and basic mechanics tools

Customer: replied 4 years ago.

i have a basic scan tool and bascic mechanics tools

Expert:  JHoop replied 4 years ago.
What happened?
Customer: replied 4 years ago.

06 cobalt Periodically will loose power sterring shift rough and show the taction control light along with the check engine light. the codes are p0700 and u0073, nothing else has happened

Expert:  Chevy expert replied 4 years ago.

This combination of trouble codes leads me to believe that you may possibly have a faulty transmission control module or body control module When this problem occurs Do you see any difference in the speedometer ?

Customer: replied 4 years ago.
yes the speedometer will start to fluctuate
Expert:  Chevy expert replied 4 years ago.
Okay good ,That makes me think that we may have a problem with the transmission control module itself , do you have good communication withthe Transmission control module using a scan tool can you read the data from the transmission control module
Customer: replied 4 years ago.
the only codes i get are p0700 and u0073 i only have a basic scanner
Expert:  Chevy expert replied 4 years ago.
Yes you will need a better scan tool one that is capable of reading data from these modules
Customer: replied 4 years ago.
the only codes i get are p0700 and u0073 i only have a basic scanner. I the control module something that has to be programed
Expert:  Chevy expert replied 4 years ago.
Yes this has to programmed when it is replaced if you have a dealer look at this fuel for a two just get back to me with his results so I can give you a second opinion and make sure you're not being led down the wrong path
Chevy expert, ASE Certified Technician
Category: Chevy
Satisfied Customers: 10370
Experience: 30 yrs experience ase cetified tech shop owner
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