
2002 Chevrolet Silverado 2500 HD 8.1L Tcm P0561
TCM has a p0561 code. A previous shop replaced the tcm with a gm reman. (Unsure if the truck was experiencing the same code at rhe time of tcm replacement).the other key elememt ist the code doesent set until the vehicle has been driven and fully warmed up...
FIX posted 9/10/2025
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)5 Replies Received(Hide Replies)5 Replies Received
|
Message Closed w/FIX
|
VIN | 1GCHC29GX2 |
Engine | 8.1 L / 8 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | TCM P0561 |
Conditions | Ign Voltage Drop Out |
Message Closed w/FIX
Vehicle Data
2002 Chevrolet Silverado 2500 HD
VIN | 1GCHC29GX2 |
Engine | 8.1 L / 8 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | TCM P0561 |
Conditions | Ign Voltage Drop Out |