Help!
Thread Starter
6th Gear
Joined: Sep 2023
Posts: 6
Likes: 0
From: Mansfield, OH
Help!
My Corvette will not start. Turn key to look that everything is OK. I get many messages (see below). Turn key to start, nothing. DOA. please see below. I would appreciate any assistance.
WHAT I SEE WHEN I TURN THE KEY TO ACC.
Corvette
By Chevrolet
Odometer 117701
Reduced Engine Power
Service Traction System
Service Vehicle Soon
Service Active Handling
Service Traction System
Repeats Again
Sometimes Low Fuel (Fuel is not low)
Ran Diagnostics
TCS U1000 H
BCM NO COMM
SDM U1000 H C. U1064 H C
IPC U1160 H C. U1176 H C
RADIO NO CODES
HVAC NO COMM
I replaced the BCM. Still have same issues. Bought from Ebay. ???????
Checked all fuses. All good. Swapped relays around for Ignition.
Now at a loss.. Help please. Next step, Dealership and poor house.
Steven
WHAT I SEE WHEN I TURN THE KEY TO ACC.
Corvette
By Chevrolet
Odometer 117701
Reduced Engine Power
Service Traction System
Service Vehicle Soon
Service Active Handling
Service Traction System
Repeats Again
Sometimes Low Fuel (Fuel is not low)
Ran Diagnostics
TCS U1000 H
BCM NO COMM
SDM U1000 H C. U1064 H C
IPC U1160 H C. U1176 H C
RADIO NO CODES
HVAC NO COMM
I replaced the BCM. Still have same issues. Bought from Ebay. ???????
Checked all fuses. All good. Swapped relays around for Ignition.
Now at a loss.. Help please. Next step, Dealership and poor house.
Steven
Thread Starter
6th Gear
Joined: Sep 2023
Posts: 6
Likes: 0
From: Mansfield, OH
Battery
Last edited by Blake777; Sep 23, 2023 at 10:45 PM. Reason: Add more info
Pro
Joined: Feb 2012
Posts: 743
Likes: 305
From: Pendleton Indiana
Check all fuses and grounds….. I blew a random fuse in passenger footwell by accidentally making contact with the cigarette lighter shorting it out when removing my center dash bezel….. car wouldn’t start and was getting lots of whacky codes….. took me a long while to figure out which fuse was actually blown…… also lots of these whacky issues on the C5 pop up with a loose or corroded ground point…. Lots of videos on YouTube showing locations of each ground….. I would bet money it’s either a fuse or ground issue.
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Melting Slicks
Joined: Sep 2008
Posts: 3,131
Likes: 799
From: Espanola New Mexico
Did you perform a BCM relearn procedure after installing the ebay BCM? The BCM has to learn the resistance of the key pellet and has to establish communication with the PCM, the procedure is here on this site.
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Melting Slicks
Joined: Sep 2008
Posts: 3,131
Likes: 799
From: Espanola New Mexico
I am assuming that no start means that the engine is not cranking over? All no cranking problems should begin by checking that the TDR relay is or is not being energized, you should hear it click on when you turn the Ignition switch to the start position. The TDR is the relay that sends 12v power to energize the starter, it is located above the BCM in the passenger footwell area.