Conditions for Running the DTC

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0090, P0091, P0092, P0191, P0192, or P0193 is not set.
The ignition voltage is less than 18 volts.
The deceleration fuel cut-off (DFCO) is inactive.
The engine speed is greater than 25 RPM.
The engine start temperature is greater than -48°C (-54.4°F)
The air bag is not deployed.
DTCs P0087, P0088, and P0089 run continuously when the above conditions are met for 5 seconds.