Communication Failure
5

Asked by Mason04 May 17, 2009 at 09:37 PM about the Chevrolet Silverado 2500HD

Question type: Maintenance & Repair

When I hook up a computer to my truck to figure out some problems all the computer tells me to is to make sure the ignition key is on. I turn the key on and I still get the same reading from the computer. Anybody know what might be the problem so I can get a diagnostic reading??

1 Answer
19,955

Mike answered 14 years ago

Go to your basics - There needs to be power at the OBD2 connector for the scanner to negotiate with the on board computer system - Check fuses. If all are good check pin 16 for power and 4/5 for ground. If all checks out your scnner connection might be corroded or not connecting properly to the connector on the vehicle.

12 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Communication Failure 1 Answer

    When I hook up a computer to my truck to figure out some problems all the computer tells me to is to make sure the ignition key is on. I turn the key on and I still get the same reading from the compu...

    Chevrolet Silverado 2500HD

    -

    Maintenance & Repair

  • Lost communication with TCM 2 Answers

    re the fusible links or anything else I can go to that will repower the TCM ? I have a feeling that one of the guys touched the TCM with a hot positive cable during the jump start and shorted somethin...

    2006 Chevrolet Silverado 2500HD

    -

    Maintenance & Repair

  • Window Failure Chevy Silverado 2500 Diesel 1 Answer

    I recently purchased a chevy silverado 2007 duramax 6.6 and was told the windows were not working. The drivers side window and drivers side rear window work, however the passenger side windows don't...

    2007 Chevrolet Silverado 2500HD Work Truck Crew Cab 4WD

    -

    Maintenance & Repair

  • heat failure driver's side 2006 1 Answer

    Loss of heat on Driver's side

    2006 Chevrolet Silverado 2500HD Work Truck LB RWD

    -

    Maintenance & Repair

  • Chevy silverado 2500 HD Window Failure 3 Answers

    I recently purchased a 2500 HD diesel Chevy Silverado 2007 V6.6 truck, and for some reason I am having faliures on the windows. The drivers side window works fine, yet when I try to lower or higher ...

    2007 Chevrolet Silverado 2500HD Work Truck Crew Cab 4WD

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Silverado 2500HD Questions

CarGurus Experts

  • #1
    GuruXPQGJ
    Reputation
    1,430
  • #2
    Reelin68
    Reputation
    1,190
  • #3
    Steven Loeffler
    Reputation
    1,150
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 2500HD
30 Great Deals out of 2,129 listings starting at $5,500
Used Chevrolet Silverado 1500
179 Great Deals out of 7,272 listings starting at $6,995
Used Ford F-250 Super Duty
28 Great Deals out of 783 listings starting at $9,995
Used RAM 2500
62 Great Deals out of 2,661 listings starting at $4,995
Used Chevrolet Silverado 3500HD
27 Great Deals out of 914 listings starting at $9,990
Used Dodge RAM 2500
4 Great Deals out of 31 listings starting at $7,900
Used GMC Sierra 1500
146 Great Deals out of 8,031 listings starting at $4,944
Used Ford F-150
311 Great Deals out of 13,911 listings starting at $3,888
Used Ford F-250
5 listings
Used Toyota Tundra
32 Great Deals out of 949 listings starting at $10,698
Used GMC Sierra 3500HD
35 Great Deals out of 1,449 listings starting at $19,995
Used Ford F-350 Super Duty
61 Great Deals out of 1,555 listings starting at $6,200
Used RAM 1500
476 Great Deals out of 19,437 listings starting at $2,000
Used Chevrolet Silverado 3500
6 listings
Used Chevrolet Tahoe
16 Great Deals out of 783 listings starting at $7,499

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. Content will be removed if CarGurus becomes aware that it violates our policies.