1998 corvette c5
Thread Starter
4th Gear
Joined: Oct 2022
Posts: 4
Likes: 0
1998 corvette c5
I. Just got a used bcm and had it flashed now I have a code shocks inoperable and I don’t not have ride control in this car I just bought a tech 2 scanner and when I get it I hope I can deactivate it any one else had this problem can’t go over 80 tried to clear it in the dash it clears it and it’s right back o. I believe because she shuts down at 80 every time thx jr
Melting Slicks
Joined: Sep 2008
Posts: 3,130
Likes: 799
From: Espanola New Mexico
The flashing of the bcm has to be done with the vin number because it contains the options your car does or does not have, I am not knowledgeable about reprogramming a BCM but believe someone will chime in how to correct this.
Le Mans Master
Joined: Feb 2021
Posts: 6,460
Likes: 4,305
From: Florida
2025 Corvette of the Year Finalist - Unmodified
2024 C5 of the Year Winner- Unmodified
2022 C5 of the Year Finalist - Unmodified
Contact “ Diag C5”. He knows a lot about our electrical systems
.
Joined: Apr 2013
Posts: 5,025
Likes: 1,151
From: Oregon
St. Jude Donor '14-'15-'16-'17-'18-'19-'20-'21-'22-'23
Try following this procedure and see if it works.
1. Hook up Tech 2, turn car on, make sure module in the rear is plugged in. Do not unplug the rear module.
2. Use Tech 2 to delete the F45 option (F55 does not appear on the menu screen, use F45).
3. Save new configuration.
4. Do not turn car off, do not remove Tech 2. Go to the module in the rear of the car, unplug the grey connector (the widest one), leave any other plug(s) in. [leave the other 1 (F45) or 2 (F55) plugged in]
5. Turn off car, leave Tech 2 plugged in.
6. Remove remaining plugs from module in the rear of car. [never plug them back in again, if you do the F45 turns on automatically]
7. Turn car on to verify the "max speed 80 mph" is gone.
8. Unplug Tech 2.
You just have to skip the steps about unplugging the F45 module in the rear of the car that's where I would start
1. Hook up Tech 2, turn car on, make sure module in the rear is plugged in. Do not unplug the rear module.
2. Use Tech 2 to delete the F45 option (F55 does not appear on the menu screen, use F45).
3. Save new configuration.
4. Do not turn car off, do not remove Tech 2. Go to the module in the rear of the car, unplug the grey connector (the widest one), leave any other plug(s) in. [leave the other 1 (F45) or 2 (F55) plugged in]
5. Turn off car, leave Tech 2 plugged in.
6. Remove remaining plugs from module in the rear of car. [never plug them back in again, if you do the F45 turns on automatically]
7. Turn car on to verify the "max speed 80 mph" is gone.
8. Unplug Tech 2.
You just have to skip the steps about unplugging the F45 module in the rear of the car that's where I would start
