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Dave Nova
Dave Nova, GMC Technician
Category: GMC
Satisfied Customers: 19451
Experience:  ASE Master Certification. GM World Class Certification
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I have a 2007 GMC Sierra and we changed the battery at Sears

Customer Question

I have a 2007 GMC Sierra and we changed the battery at Sears and now it want start
Submitted: 1 year ago.
Category: GMC
Expert:  Dave Nova replied 1 year ago.

Does the starter engage and turn the engine over when the key is turned to Start position?

Customer: replied 1 year ago.
No
Expert:  Dave Nova replied 1 year ago.

With the key on, do all of the dash indicators light up? Does a/c fan work, power windows, etc. ?

Customer: replied 1 year ago.
but no Dom light
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Dave Nova replied 1 year ago.

Did old battery completely die? Was battery, jumper cables, or battery charger inadvertently connected backwards at any point?

Customer: replied 1 year ago.
No old battery was not dead.... They plunged in a OTC memory saver model 3177A and installed new battery
Expert:  Dave Nova replied 1 year ago.

Are all of the larger fuses in the underhood fuse panel intact?

Customer: replied 1 year ago.
Expert:  Dave Nova replied 1 year ago.

Is the security light on or flashing when the key is turned on or to start?

Customer: replied 1 year ago.
No but the traction control say it's off
Expert:  Dave Nova replied 1 year ago.

Do you have access to a scan tool? If so, try to communicate with the PCM and BCM and let me know.

Customer: replied 1 year ago.
No I do not I'm at Sears automotive shop
Customer: replied 1 year ago.
Can you call me at(###) ###-####
Expert:  Dave Nova replied 1 year ago.

They should have a diagnostic scan tool there. Perhaps they could do this for you. If all fuses are good then there is likely a computer glitch or failure. You can try disconnecting the battery for at least 30 seconds to try to reset all modules. After that a scan tool will be necessary to see which modules are communicating and which are not.

Customer: replied 1 year ago.
We disconnected the battery several times with no luck look for the scan tool
Customer: replied 1 year ago.
Will it tell if a fuse is blown?
Expert:  Dave Nova replied 1 year ago.

The scan tool will tell you if the modules are communicating. Fuses need to be checked visually or with a test light at each fuse.

Customer: replied 1 year ago.
Found scan tool what's next
Expert:  Dave Nova replied 1 year ago.

Connect scan tool to diagnostic port under drivers side of dash. Power up the scan tool and check trouble codes. You will want to check powertrain codes (PCM) and body codes (BCM). Let me know what you find.

Customer: replied 1 year ago.
This scanner does not read that
Expert:  Dave Nova replied 1 year ago.

Does it check codes at all? If so, what are the code numbers from the scanner?

Customer: replied 1 year ago.
It sad no codes to read
Expert:  Dave Nova replied 1 year ago.

Sounds like the scanner is very basic, likely only reads powertrain codes and will not talk to the BCM. Has the inspection of all the fuses been completed?

Customer: replied 1 year ago.
BCM computer was bad
Expert:  Dave Nova replied 1 year ago.

That is what I suspected. Thank you for the update. This sometimes happens when a battery change is done.

Dave