does replugging tcm on cobalt 2009 reset chk engine light?

Asked by Feb 25, 2017 at 10:33 AM about the 2009 Chevrolet Cobalt LT1

Question type: Maintenance & Repair

get codes 700 and 751. i replugged the tcm and chk light went off. could bad
connection been the problem. trns shifted just fine.

1 Answer

73,785

The po751 code is your problem and needs to be fix in-order to turn off, or reset the code. This is what turns off the check engine light, and would need to be done with a scanner..... P0700 CHEVROLET - Transaxle Control System Malfunction...Possible causes; Shorted or open circuit within Transmission Control Module (TCM), Faulty Transmission Control Module (TCM)...Since the P0700 is just and informative code, check the TCM for more codes to resolve the problem.....P0751 CHEVROLET - 1-2 Shift Solenoid Stuck Off...Possible causes; Low transmission fluid level, Dirty transmission fluid, Faulty 1-2 Shift Solenoid valve 1-2, Shift Solenoid valve harness or connectors 1-2, Shift Solenoid valve circuit is open or shorted...When the a transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

Your Answer

Chevrolet Cobalt Experts

  • #1
    lightGear
    Reputation
    1,170
  • #2
    munron
    Reputation
    1,040
  • #3
    dandyoun
    Reputation
    960
View All

Related Models For Sale

Used Honda Civic
293 Great Deals out of 3,472 listings starting at $995
Used Chevrolet Malibu
87 Great Deals out of 2,232 listings starting at $2,994
Used Chevrolet Impala
116 Great Deals out of 1,046 listings starting at $1,510
Used Ford Focus
113 Great Deals out of 2,714 listings starting at $1,100
Used Ford Mustang
8 Great Deals out of 1,120 listings starting at $1,250
Used Chevrolet Camaro
3 Great Deals out of 814 listings starting at $12,995
Used Toyota Corolla
198 Great Deals out of 3,796 listings starting at $1,800
Used Honda Accord
81 Great Deals out of 1,066 listings starting at $1,200
Used Dodge Charger
62 Great Deals out of 771 listings starting at $2,000
Used Toyota Camry
61 Great Deals out of 1,958 listings starting at $850
Used Honda Civic Coupe
66 Great Deals out of 933 listings starting at $999
Used Ford Fusion
145 Great Deals out of 2,110 listings starting at $995

Used Cars For Sale

2010 Chevrolet Cobalt LT1 For Sale
6 Great Deals out of 34 listings starting at $1,400
2009 Chevrolet Cobalt LT1 For Sale
8 Great Deals out of 24 listings starting at $1,950
2008 Chevrolet Cobalt LT1 For Sale
3 Great Deals out of 19 listings starting at $1,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.