DTC C0290 or C0292

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DTC C0290 Or C0292: EBCM Failed To Receive Serial Data From PCM

Courtesy of GENERAL MOTORS CORP.