Conditions for Running the DTC

DTCs P0120, P0121, P0220, P0641, P0651, P2135 are not set.
The engine has been running for a calibrated length of time, that is determined by the start-up engine coolant temperature (ECT). The length of time ranges from 2 minutes at less than -30°C (-22°F) to 1 second at more than 30°C (86°F).
The TP Indicated Angle parameter is less than 90 percent, when the engine speed is less than 1,000 RPM.
OR
The TP Indicated Angle parameter is less than 98 percent, when the engine speed is more than 1,000 RPM.
DTC P0108 runs continuously when the above conditions are met.