| 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. After loosening the nuts (4EA) holding the rear combination lamp and disconnecting the connector (A), remove the outside rear combination lamp assembly. 3. Remove the bulb (A) after turning it in the counter clock-wise direction.
Instructions When Handling Refrigerant 1. R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves. 2. It is standard practice to wear goggles or glasses to protect your eyes, and gloves to protect your hands.