Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter. The sensor output voltage varies in accordance with the air/fuel ratio.

The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled by the ECM via a duty cycle signal. When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.

Knock Sensor (KS). Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold (Refer to “Intake ...

Heated Oxygen Sensor (HO2S). Specifications

Specification HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) 2.5 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2 ...

See also:

Main components of occupant classification system
A detection device located within the front passenger seat frame. Electronic system to determine whether the front passenger air bag system should be activated or deactivated. A warning ligh ...

Solenoid valve. Specifications
Specification Item Function Piece Specification VFS 　 　 26/B T/Con 2 Control p ...

Troubleshooting
Troubleshooting Symptom Suspected area Repairment Pressing power switch does not turn on system Radio receiver power source circuit ...