2003 Saturn L300FACTORY OEM SERVICE PROCEDURE

Inspection/Maintenance Complete System Set Procedure: Procedure

WARNING: Road test a 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.
  1. Did you perform the Inspection/Maintenance (I/M) System Check? If yes, go to next step. If no, see INSPECTION/MAINTENANCE SYSTEM CHECK .
  2. Ensure that 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 that the transmission is in Park for automatic transmissions and Neutral for manual transmissions. Start the engine and allow the engine to idle. Allow the engine to idle for 2 minutes. When complete, go to next step.
  3. In order for the next group of tests to run, the vehicle must operate in the following conditions:
    • Acceleration at part throttle to 45 MPH with this speed maintained until the engine reaches operating temperature. This may be up to 16 minutes depending on the start up coolant temperature.
    • Continued operation under these conditions for an additional 7 minutes.

    After procedure, go to next step.

  4. In order for the next group of tests to run, the vehicle must operate in the following conditions:
    • Accelerate to 55 MPH with this speed maintained for one additional minute.
    • Decelerate to 30 MPH while the following criteria is maintained:
      1. The throttle is closed.
      2. NO brake application on either manual or automatic transmission.
      3. NO clutch actuation on a manual transmission.
      4. NO manual downshift.
    When complete, go to next step.
  5. In order for the next group of tests to run, the vehicle must operate in the following conditions:
    • Acceleration at part throttle to 45 MPH with this speed maintained for 10 minutes.
    • Deceleration to 0 MPH.
    • Engine idling for one minute while the following criteria is maintained:
      1. Service brake depressed.
      2. Automatic transmission in Drive.
      3. Manual transmission in Neutral with the clutch pedal depressed.

    When complete, go to next step.

  6. With a scan tool, observe the I/M System Status display. 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 indicated systems that have not passed.
  7. With a scan tool, observe the Emission Related DTC portion of the 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.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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