Tag Archives: 1990

1990 to 1996 Corvette HVAC Diagnostic Codes

C4 1990 to 1996 Corvette HVAC Diagnostic Codes Explained

1990 to 1996 Corvette models that are equipped with the C68 option code (Automatic, Electronic Air Condition) allow HVAC diagnostic codes to be read from the digital screen on the climate control panel. This feature is useful when attempting to diagnose issues with the A/C system. To learn more about entering the diagnostic mode and…

C4 Corvette RPO Codes

C4 Corvette Regular Production Option (RPO) Codes

The following is a list of Regular Production Option (RPO) Codes for C4 Chevrolet Corvettes from 1984 to 1996. A Regular Production Option (RPO) is General Motors standard coding for vehicle configuration options. These codes are a combination of 3 alphanumeric characters and refer to a specific options or modifications to a vehicle. If any C4 Corvette codes have…