IF YOU CONFIRM The MIL is ON with one or more of the following DTCs stored as current: P22A7, P229E, P221A. ACTION 1. Replace the Outlet NOx Sensor. 2. Confirm that ECM requires reprogramming. Refer to step 6 on page 7. If the ECM requires reprograming: a. Perform Save Computer Data with CONSULT-III plus (C-III plus). b. Reprogram ECM. c. Perform Write Saved Data. See this bulletin for further detail.
