Test Description

The numbers below refer to the step numbers on the diagnostic table.

2: This step is to run the heated oxygen sensor (HO2S) heater diagnostics and initiate the evaporative emission (EVAP) system diagnostic.
3: This step is to run the EVAP, secondary air injection (AIR) and the oxygen sensor diagnostics. The EVAP test begins once the engine coolant reaches a calibrated temperature. The AIR test, if equipped, begins shortly after Closed Loop and the indicated speed is achieved. The oxygen sensor diagnostics begin once the engine is at operating temperature, in Closed Loop fuel control, and a calibrated amount of time has elapsed.
4: This step is to run the catalyst diagnostics and the engine off natural vacuum (EONV) portion of the EVAP diagnostics. The Catalyst diagnostics run during the idle period immediately following a cruise period that meets a minimum calibrated RPM and time period. The EONV portion of the EVAP diagnostics runs with the engine OFF.
6: The I/M System Status only reports on whether or not a diagnostic has run, not what the outcome of the test was. If any emission related DTC sets after the tests are complete, the DTC will require diagnosis.

Inspection/Maintenance (I/M) Complete System Set Procedure

Step	Action	Value(s)	Yes	No
1	Did you perform the Inspection/Maintenance (I/M) System Check?	-	Go to Step 2	Go to Inspection/Maintenance (I/M) System Check
2	IMPORTANT: Whenever the ignition is turned ON, ignition positive voltage is supplied to the heated oxygen sensor (HO2S) heaters. After verifying the enable criteria, turn OFF the ignition for approximately 5 minutes to allow the sensors to cool before continuing with the test. Once the engine is started, DO NOT turn the engine OFF for the remaining portion of the set procedure. Preprogram the scan tool with the vehicle information before the ignition is turned ON. Ensure the vehicle is within the Conditions for Running specified in the supporting text. Turn OFF all of the accessories, e.g., A/C, blower fan, etc. Set the vehicle parking brake. Verify the transmission is in PARK for automatic transmissions and NEUTRAL for manual transmissions. Start the engine and idle for the specified time. Is the action complete?	2 minutes	Go to Step 3	-
3	CAUTION: Refer to Road Test Caution in Cautions and Notices. Accelerate at part throttle to 90 km/h (56 mph) with this speed maintained until the engine reaches operating temperature. This may be up to 10 minutes depending on the start-up coolant temperature. Continue operation under these conditions for an additional 6 minutes. Is the action complete?	-	Go to Step 4	-
4	CAUTION: Refer to Road Test Caution in Cautions and Notices. Accelerate at part throttle to 73-89 km/h (45-55 mph) with this speed maintained for 2 minutes. Decelerate to 0 km/h (0 mph). Allow the engine to idle for 2 minutes while the following criteria is maintained: Service brake depressed Automatic transmission in DRIVE or manual transmission in NEUTRAL with the clutch pedal depressed Turn OFF the ignition for one hour. Turn ON the ignition after one hour. Is the action complete?	-	Go to Step 5	-
5	Observe the I/M System Status display with a scan tool. Did all of the I/M System Status indicators update to YES?	-	Go to Step 6	Go to the I/M System Set Procedure for the systems that have not updated to YES
6	Observe the Emission Related DTC portion of the I/M System Status display with a scan tool. Does the scan tool indicate any Emission Related DTCs set?	-	Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information	System OK