Vehicles impacted by this bulletin may show the following OBD DTC.
- P0137 [1] 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
- P0131 [1] 02 Sensor Circuit Low Voltage (Bank I Sensor I)
- P0031 [1] HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
- P0101 [1] Mass or Volume Air Flow "A" Circuit Range/Performance Problem
- P0171 [1] System too Lean (Bank 1)