Heated Oxygen Sensor (HO2S) Heater System Set Procedure
INSPECTION/MAINTENANCE HEATED OXYGEN SENSOR HEATER SYSTEM SET
DESCRIPTION
The purpose of this test is to satisfy the enable criteria necessary to execute inspection/maintenance (I/M) readiness diagnostics for the Heated Oxygen Sensor (HO2S) System. The test may be used to set the I/M System Status to YES.
CONDITIONS FOR RUNNING
The battery voltage is more than 10 volts.
DIAGNOSTIC AIDS
If there is an impending failure, the system may require more time to run the diagnostic than was allotted in the set procedure. If the test does not run after numerous attempts and no DTC is set, review the appropriate scan tool data list and the service information for an indication of why the test does not complete. Some tests may abort due to changes in the conditions while the test is running. For example, changes in engine load, such as a cooling fan or an A/C compressor clutch turning ON, may cause the test to abort.
TEST
