P0111 Idle Test

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.

Before the ECM can report DTC P0111 failed, DTC P0101 must run and pass.
DTC P0112, P0113, P0116, P0117, P0118, P0119, P0125, or P0128 is not set.
The engine coolant temperature (ECT) at engine start is less than 110°C (230°F).
The ECT is greater than 66°C (151°F).
The vehicle speed is less than 11 km/h (7 mph), 5 km/h (3 mph) for LLT.
The MAF is less than 8 g/s-LLT only.
DTC P0111 runs continuously once the above conditions are met for greater than 2 seconds, 51 seconds for LLT.