MIL Illumination: DTCs P112C and/or P112D
This bulletin involves replacing the Post Catalyst Position O2 Sensor.
A small number of customers may experience a Malfunction Indicator Lamp (MIL)
illumination. Upon further investigation the technician may find the following Diagnostic
Trouble Codes (DTCs) stored or active:
· P112C - O2 Sensor 2/1 Pumping Undercurrent.
· P112D - O2 Sensor 2/1 Pumping Overcurrent.
