DTC P0151: 2/1 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: 2/1 Heated Oxygen Sensor (HO2S) may also be referred to as an upstream oxygen sensor. 2/1 HO2S is located in front of engine compartment, on left bank exhaust manifold.