LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2024 >> Acadia AT4 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel, Displays And Gauges >> Diagnostic Information and Procedures >> DTC P2C21; >> Circuit / System Description

Circuit / System Description

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

Component Description
B36 Engine Oil Temperature Sensor The temperature sensor is a negative temperature coefficient thermistor, a resistor which changes based on temperature.
K20 Engine Control Module / K45 Powertrain Control Module The control module converts the analog voltage signal input to a temperature value.