Action Taken When the DTC Sets
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.
- DTC C0521 is stored in memory.
- The EVO outputs are disabled.
- The Electronic Brake Control Module (EBCM) may turn on the SERVICE STABILITY SYSTEM message in the IPC message center.