| Circuit Diagram |

Signal Waveform
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the HO2S connector. 3. Measure resistance between the HO2S terminals 1 and 2. 4.
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the front bumper. (Refer to Body - "Front Bumper Cover") 3. Disconnect the front fog lamp connector (A). 4. Remove the front fog lamp assembly (A) after loosening the mounting nut.
C