Circuit/System Testing
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NOTE: Many DTC related repairs will instruct the technician to clear the DTC information. Clearing the DTC will reset the I/M System Status indicators to NO. Performing the I/M Complete System Set Procedure will set each of the I/M System Status indicators to YES.
Observe the Engine DTC information with a scan tool. Verify no DTCs are present.
- If a DTC is set that would prevent the I/M System Status tests from completing, diagnose that DTC before continuing. Refer to Engine Management And Fuel System, V6 DTC Index .
- Review applicable service bulletins for software updates that would prevent the I/M System Status tests from completing.
- If a control module re-program or other repair is required, perform the INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE .
- Observe the I/M System Status indicators.
- If any I/M System Status indicators report NO, perform the INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE .
- Observe the I/M Test DTC information with a scan tool. Verify there are no I/M Test DTCs present.
- If an I/M test DTC is set and all of the I/M system status indicators are YES, there is no need to perform the complete system set procedure diagnose the DTC using the Engine Management And Fuel System, V6 DTC Index .
- If an I/M test DTC is activated and the I/M-system's status indicators indicate NO, diagnosis shall be performed by the DTC. Then perform INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE .