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Home >> Saturn >> 2003 >> Vue 3.0 B, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 3.0L >> Drive Cycles >> Inspection/Maintenance Complete System Set Procedure >> Diagnostic Procedures

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. Ensure vehicle is within the Conditions for Running. See CONDITIONS FOR RUNNING . Turn OFF all of the accessories, e.g., A/C, blower fan, etc. Set vehicle parking brake. Verify transmission is in Park (A/T) or Neutral (M/T). Start engine and allow it to idle for 2 minutes, then go to next step.
  3. In order for the next group of tests to run, the vehicle must operate in the following conditions: Accelerate at part throttle to 45 MPH (72 km/h). Maintain this speed until engine reaches operating temperature. This may be up to 16 minutes, depending on the start-up coolant temperature. Continue operation under these conditions for an additional 7 minutes, then go to next step.
  4. In order for the next group of tests to run, the vehicle must operate in the following conditions: Accelerate at part throttle to 45 MPH (72 km/h). Maintain this speed for 10 minutes. Decelerate to zero MPH. With engine idling for one minute while the following criteria is maintained: Depress service brake, place transmission in Drive (A/T) or Neutral (M/T) with clutch pedal depressed, then go to next step.
  5. Observe 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 INSPECTION/MAINTENANCE SYSTEM CHECK  procedure for the indicated systems that have not passed.
  6. Observe Emission Related DTC portion of the I/M System Status display with a scan tool. Does scan tool indicate any Emission Related DTCs set? If yes, go to INSPECTION/MAINTENANCE SYSTEM DTC TABLE . If no, system is okay.
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