DTC P0159: 2/2 O2 Sensor Slow Response: Notes

NOTE: Applies to California models only. The 2/2 HO2S may also be referred to as a downstream oxygen sensor. 2/2 HO2S is located in exhaust pipe behind right catalytic converter.

NOTE: For circuit identification and wiring diagram, see WIRING DIAGRAMS article. After each repair procedure has been completed, reconnect all components. Perform TEST VER-5: OBD-II MONITOR VERIFICATION under VERIFICATION TESTS to ensure system is functioning properly.