Conditions for Running the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
P0120, P0122, P0123, P0220, P0222, and P0223
- DTC P0641 or P0651 is not set.
- The run/crank or powertrain relay voltage is greater than 6 V and reduced power is not active.
- The ignition is ON or the engine is operating.
- DTC P0120, P0122, P0123, P0220, P0222, P0223 run continuously when the above conditions are met.
P0121
- DTCs P0102, P0103, P0107, P0108, P0111, P0112, P0113, P0116, P0117, P0118, P0128, P0315, P0335, P0336, or P3400 is not set.
- The engine speed is between 450-6, 700 RPM.
- The engine coolant temperature (ECT) is between -7 to +125°C (19-257°F).
- The intake air temperature (IAT) is between -20 to +125°C (-4 to +257°F).
- DTC P0121 runs continuously when the above conditions are met.
P2135
- DTC P0120, P0122, P0123, P0220, P0222, P0223, or P0651 is not set.
- The run/crank or powertrain relay voltage is greater than 6 V and reduced power is not active.
- The ignition is ON or the engine is operating.
- DTC P2135 runs continuously when the above conditions are met.