Conditions for Running the DTC

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

P0089, P228C, or P228D

DTC P0016, P0017, P0018, P0019, P0090, P0091, P0092, P00C8, P00C9, P00CA, P0111, P0112, P0113, P0116, P0117, P0118, P0128, P0192, P0193, P0335, P0336, P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, or P0628 is not set.
The ignition voltage is greater than 11 V.
The low side fuel pressure is greater than 275 kPa (40 PSI).
The engine is running.
The barometric pressure is greater than 70 kPa.
The inlet air temperature (IAT) is greater than -10°C (14°F).
The fuel temperature is between -10 (14°F) and 1027°C (260°F).
The DTCs run continuously when the above conditions are met for 10 s.

P00C6

DTC P0090, P0091, P0092, P00C8, P00C9, P00CA, P0116, P0117, P0118, P0128, P0192, P0193, P0335, P0336, P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, or P0628 are not set.
Low side fuel pressure is greater than 0 kPa (0 PSI).
The engine is not running.
The vehicle is not in a low fuel condition.
The Run/Crank voltage is greater than 8 V.
The engine coolant temperature is less than 85°C (185°F).
The barometric pressure is greater than 70 kPa.
The inlet air temperature (IAT) is greater than -10°C (14°F).
The diagnostic runs once for each engine start when the allow conditions are met.