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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 2.0L (LSY) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0030-P0032, P0036-P0038, P0054, P0135, P0141, P103B, or P103C >> Circuit/System Description

Circuit/System Description

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Circuit Description
Ignition Terminal 2 Supplied from a fuse.
Ignition Terminal 5 Supplied from a fuse.
Control Terminal 1 The output circuit is switched to ground to activate the component.
Control Terminal 6 The output circuit is switched to ground to activate the component.
Component Description
B52 Heated Oxygen Sensor In addition to the hot exhaust gas, heated oxygen sensors have a resistor heating element to minimize the time required for the sensor to reach operating temperature. The ECM monitors the temperature and turns the heater on as necessary.
K20 Engine Control Module The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly.