LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saturn >> 2003 >> Vue 2.2 D, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 2.2L >> Drive Cycles >> Inspection/Maintenance Complete System Set Procedure >> Diagnostic Procedures
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Procedures

  1. Did you perform the Inspection/Maintenance (I/M) System Check? If yes, go to next step. If no, go to INSPECTION/MAINTENANCE SYSTEM CHECK .
    2. NOTE: Whenever ignition is turned on, ignition positive voltage is supplied to the HO2S heaters. After verifying the enable criteria, turn off the ignition for about 5 minutes to allow the sensors to cool before continuing with test. Once engine is started, DO NOT turn engine off for the remaining portion of the set procedure.
  2. Preprogram the scan tool with the vehicle information before the ignition is turned on. Ensure vehicle is within the Conditions for Running. Turn off all of the accessories (e.g., A/C, blower fan, etc.). Set vehicle parking brake. Verify the transmission is in Park (A/T) and Neutral (M/T). Start and allow engine to idle for 2 minutes. When complete, go to next step.
    3. WARNING: Road test vehicle under safe conditions and while obeying all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these precautions could lead to serious personal injury and vehicle damage.
  3. In order for the next group of tests to run, the vehicle must operate in the following conditions: Accelerate at part throttle to 56 MPH (90 km/h) with this speed maintained until engine reaches operating temperature. This may be up to 10 minutes depending on start-up coolant temperature. Continue operation under these conditions for an additional 6 minutes. When complete, go to next step.
  4. In order for this test to run, the vehicle must operate in the following conditions: Accelerate at part throttle to 47-55 MPH (75-89 km/h) with this speed maintained for 2 minutes. Decelerate to zero MPH. Operate engine at idle for 2 minutes while the following criteria is maintained: Service brake depressed, transmission in Drive (A/T) or Neutral (M/T) with the clutch pedal depressed. When complete, go to next step.
  5. Observe the I/M System Status display with scan tool. Did all of the I/M System Status indicators update to YES? If yes, go to next step. If no, go to the I/M System Set Procedure for the systems that have not passed.
  6. Using scan tool, observe emission related DTC portion of I/M system status display. Does the scan tool indicate any emission related DTCs set? If yes, see DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no, system is okay.
scientia non olet · About LEMON Manuals