Conditions for Running the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
P0068
- DTCs P0641, P0651, P1516, P2101, P2119, P2176 are not set.
- The engine is running.
- DTC P0068 run continuously when the above conditions are met.
P0121
- DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0315, P0335, P0336 are not set.
- The engine speed is more than 450 RPM.
- DTC P0121 run continuously when the above conditions are met.