P129d 2014 corvette stingray

Hey guys this is the problem. I work at a used car dealership and they have a 2014 corvette stingray they told me the check engine was on so I check the car and it’s not on but there is a p129d code . I tried to clear this but it won’t clear . I haven’t driven this car because it’s sitting on the showroom floor . I checked fuses Ect . Now they want me to see if this module got unplugged well haven’t done any of this kind of work before and I can’t find any info on where this is located or even if I’m chasing a problem that’s even related to this file pump driver module. Help I need a direction on how to handle this beast . I know you all might need more information . I need a direction on this. Thanks

You didn't say what engine you have, so I picked the 6.2

This code is for the Fuel Pump Driver Module - low voltage

I'm going to assume that this car runs. The car wouldn't run with this module unplugged.

This code sets when the FPDM detects less than 6V from the ignition switch

Here is a wiring diagrams:

www.revbase.com/BBBMotor/Wd/DownloadPdf?id=1049802

Looks like you need to check the voltage at the VT/L-GN (violet / light green) wire on the FPDM. This wire gets voltage from the main relay

Check the voltage & let us know

There is also a 2nd ignition input on the FPDM. Also check voltage on the VT/YE (violet/yellow) wire. Let us know.

where is this module located on this car ?

Thank you for your information. Yes it’s a 6.2 I will check these voltage on the wires as soon as I can . I’m a brake technician who is trying to expand my abilities to the dealership I work for I’ve been here 9 years and before that I had my own shop ( tires and brakes and some diagnostic work ) but I have been out of the loop 9 years just bought a used verus I’m tired of being a parts changer. Thank you all for your knowledge and help.

Looking forward to seeing where this one goes. For more info, SMA did a video on this code:

Eric has a good channel! real live world work...

Totally, love his videos. I stole his test light + Vise-Grip idea and made my own. :lol:

johnfry wrote: where is this module located on this car ?

Alldata says its in the rear compartment (trunk?), under the carpet, under an access cover. I hope that helps. Here is what it looks like:

www.amazon.com/ACDelco-23184800-Original...ontrol/dp/B010GKX7V2

Should be an easy diagnosis.

Yes this is actually the first video I have seen on this code . I don’t want to sound stupid but any idea where this module is located on this 14 corvette stingray 6.2?

Thanks I’ll look in the trunk tomorrow when I get to work and update you on the voltage I come up with.

Alldata says its in the rear compartment (trunk?), under the carpet, under an access cover. I hope that helps. Here is what it looks like:

www.amazon.com/ACDelco-23184800-Original...ontrol/dp/B010GKX7V2

Check all the powers & grounds. Should be an easy diagnosis