DTC P0157: 2/2 O2 Sensor Shorted To Ground: Notes

NOTE: For circuit identification and wiring diagram, see WIRING DIAGRAMS article. If Powertrain Control Module (PCM) is replaced, PCM must be reprogrammed. See PROGRAMMING . After each repair procedure has been completed, reconnect all components. Perform POWERTRAIN VERIFICATION TEST VER-5 under VERIFICATION TESTS to ensure system is functioning properly.

NOTE: 2/2 Heated Oxygen Sensor (HO2S) may also be referred to as a downstream oxygen sensor. 2/2 HO2S is located under front of engine compartment, on left bank exhaust pipe, after catalytic converter.