DTC P0137: 1/2 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: 1/2 Heated Oxygen Sensor (HO2S) may also be referred to as a downstream oxygen sensor. On 2.4L, 1/2 HO2S is located on catalytic converter. On 2.7L, 1/2 HO2S is located in rear of engine compartment, on right bank exhaust downpipe.