Diagnostic Procedures
- Perform powertrain diagnostic system check. See POWERTRAIN DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM. After performing powertrain diagnostic system check, go to next step.
- Review any service bulletins for software updates that may prevent I/M readiness. Perform any reprogramming or repairs indicated by the service bulletins. If reprogramming or repair service was required, go to INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE . If reprogramming or repair service was not required, go next step.
- Using scan tool, observe the I/M SYSTEM STATUS display. If more than one test is indicating a NO status, go to INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE . If only one test is indicating a NO status, perform appropriate I/M system set procedure for the indicated system. See INSPECTION/MAINTENANCE SYSTEM SET PROCEDURE INDEX table.
INSPECTION/MAINTENANCE SYSTEM SET PROCEDURE INDEX
| System With NO Status | Perform |
|---|---|
| AIR System | INSPECTION/MAINTENANCE AIR SYSTEM SET PROCEDURE |
| Catalyst System | INSPECTION/MAINTENANCE CATALYST SYSTEM SET PROCEDURE |
| EGR System | INSPECTION/MAINTENANCE EXHAUST GAS RECIRCULATION SYSTEM SET PROCEDURE |
| EVAP System | INSPECTION/MAINTENANCE EVAPORATIVE EMISSION SYSTEM SET PROCEDURE |
| HO2S/O2S System | INSPECTION/MAINTENANCE HEATED OXYGEN SENSOR SYSTEM SET PROCEDURE |
| HO2S Heater System | INSPECTION/MAINTENANCE HEATED OXYGEN SENSOR HEATER SYSTEM SET PROCEDURE |