Circuit/System Testing
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- Observe the Engine DTC information with a scan tool.
- If a DTC is set that would prevent the I/M System Status tests from completing, diagnose that DTC before continuing. Refer to Inspection/Maintenance (I/M) System DTC Table .
- 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 (I/M) Complete System Set Procedure .
- Observe the I/M System Status indicators.
- If any I/M System Status indicators report NO, perform the Inspection/Maintenance (I/M) Complete System Set Procedure .
IMPORTANT:
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.