Class 2 Serial Data Link

The class 2 serial data link allows the following modules to communicate and share data with each other:

• Body control module (BCM)
• Digital radio receiver (DRR) (U2K)
• Drivers information center (DIC)
• Electronic brake control module (EBCM)
• Instrument panel cluster (IPC)
• Heads up display (HUD) (UV6)
• HVAC module (CJ8), (C67)
• Powertrain control module (PCM) (L32), (L26)
• Radio
• Inflatable restraint sensing and diagnostic module (SDM)
• Vehicle control interface module (VCIM) (UE1)

The class 2 serial data link allows a scan tool to communicate with the above modules for diagnostic and testing purposes.