A/F Sensor inspection

WARNING: This page is about a different variant/trim than selected.

Warm up the engine to normal operating temperature.
Access the following PIDs using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST .)
- VSS (Vehicle speed)
- RPM (Engine speed)
- O2S11 (A/F sensor output current)
Drive the vehicle and decelerate the engine speed by releasing the accelerator pedal fully when the engine speed is 3, 000 RPM or more.
Verify that the A/F sensor current (PID: O2S11) is 0.25 mA or more while decelerating as shown in the illustration.
- If not within the specification, replace the A/F sensor. (See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION .)