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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P0641, P0651, P0697, or P06A3 >> Circuit/System Description

Circuit/System Description

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Circuit Description
5 V Reference Regulated voltage supplied by the control module.
Component Description
K20 Engine Control Module The control module contains a microprocessor used to process input data to control outputs.
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 sensor s, interprets the data and adjusts the engine actuators accordingly.

The control module consists of 4 internal 5 V reference circuits. The 5 V reference circuit provides 5 V for one or more sensor s. All sensor s will be affected when a short to ground or voltage is on a shared 5 V reference circuit.

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