2002 Chevrolet Prizm Base, StandardFACTORY OEM SERVICE PROCEDURE

Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 1

    Make sure you perform the I/M System Check before performing this test. Failure to do so may result in difficulty updating the status to YES.

  2. 2

    This step is to run the Heated Oxygen Sensor (HO2S) Heater tests and Evaporative Emission (EVAP) System tests.

  3. 3

    This step runs the catalyst test. The catalyst test runs during the specified cruise period.

  4. 4

    This step is to sets up the Oxygen Sensor (O2S) tests. Test runs during the idle period immediately following a cruise period that meets a minimum calibrated RPM and time period.

  5. 5

    This step runs the O2S tests and EVAP tests. Test runs during the idle period immediately following a cruise period that meets a minimum calibrated RPM and time period.

  6. 6

    Perform the individual system test for any of the systems that do not update to YES.

  7. 7

    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.
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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.