Conditions for Setting the DTC
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.
- The DIC receives a class 2 message from the PCM indicating a vehicle speed of greater than 3 km/h (1.86 mph).
- The DIC detects a loss of vehicle speed on the vehicle speed signal circuit.
- The above condition is present for greater than 15 seconds.