Owners of 2015 - 2016 Corvette Z06 models may comment about a MIL on with a DIC message.

Technicians may find DTC P2227 set in history, and the service procedure diagnostics do not repair the vehicle.

An outdated PCM calibration is causing false fails in certain vehicles.

An updated calibration has been released to address this concern.
Reprogram the PCM software to the latest service calibration.

During reprogramming, the battery voltage must be maintained within the proper range of 12 – 15 volts.
Connect the approved Midtronics PSC 550 battery maintainer (SPS programming support tool EL-49642) to the vehicle or the GR8 (EL50313) in the power supply mode.

Reprogram the PCM using the SPS with the latest calibrations available on TIS2WEB.
Refer to K20 engine control module, programming and setup in the service manual.