Heated Oxygen Sensor

Individual component testing is not available from manufacturer. If Heated Oxygen (HO2S) sensor or wiring circuit failure exists, a DTC may be stored in the powertrain control module. Perform appropriate HO2S related diagnostic test. For HO2S sensor testing, perform the appropriate diagnostic test:

• On 2.0L, see DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS - NEON & SX (CANADIAN) - 2.0L article.
• On 2.4L, see DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS - SRT-4 - 2.4L article.