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Home >> Chevrolet >> 2021 >> Tahoe SSV >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel Displays And Gauges >> Diagnostic Information and Procedures >> DTC P0196-P0199 (L82, L84, L87) >> Circuit/System Description

Circuit/System Description

For an overview of the component/system, refer to: Instrument Cluster Description and Operation 

Circuit Description
5 V Reference Regulated voltage supplied by the control module.
Signal The control module input circuit has an internal resistance connected to ground.
Low Reference Grounded through the control module.
Component Description
B37B Engine Oil Pressure Sensor The sensor is a capacitive pressure transducer. Electronics in the sensor convert pressure into an analog voltage signal.
K20 Engine Control Module The K20 control module monitors the Engine Oil Temperature Sensor 2 circuit.The control module input circuit has an internal resistance connected to ground.