Engine Control Unit (ECU) - 2002 Corvette C5 LS1

When harvesting an ECU for your 2002 Chevrolet Corvette, target 2001-2004 C5 models or 2001-2002 F-bodies sharing the LS1 architecture. The critical service number is 12200411, though supersessions like 12583827 are functionally identical. Avoid 1997-2000 units entirely—they utilize incompatible blue/green connectors while your 2002 requires the updated black connector housing introduced for the 2001 model year. At the junkyard, inspect the PCM mounting location behind the passenger kick panel for water staining; C5 Corvettes suffer from windshield seal leaks that destroy circuit boards through capillary action. Remove the three 10mm retaining nuts and disconnect the two 104-pin connectors (J1 and J2) before extraction. If sourcing from a Camaro or Trans Am, verify the casting marks match, but note that F-body units require professional VIN reprogramming and VATS synchronization to function in your Corvette. Always match transmission types—manual and automatic calibrations store different shift logic and fuel maps. Before installation, check for corroded pins or burnt traces, as these PCMs control both engine and automatic transmission functions.