Oxygen Sensor Monitor Function

Monitoring Engine Signals
With the special service tool-System Selector set to O2 Monitor, the oxygen sensor is monitored by the Self-Diagnosis Checker as described above.


NOTE: If the tires are rotated by using a chassis roller with the ignition switch at ON, the ABS control module may memorize the action as a malfunction and the ABS warning light may illuminate. If the ignition switch is turned to LOCK and then to ON again, the ABS warning light will not illuminate, because the action will be considered a past malfunction.