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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 29 (Engine Controls And Fuel - 1.8L (LKN) - DTC P0446 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P16A7, P16AF or P16B3: Engine Controls Ignition Relay Feedback Circuit 2 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different variant/trim than selected.
Circuit Description
B+ - Relay Coil Supplied directly from the battery.
B+ - Relay Switch Supplied directly from the battery.
Control - Component The output circuit is switched to 12 V to activate the component.
Control - Relay Coil The output circuit is switched to ground to activate the component.
Components

Component Description
KR75 Engine Controls Ignition Relay -
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.

4 ignition voltage circuits supply the ECM. The 4 circuits are supplied by 2 relay(s):

The ECM monitors and compares the voltages supplied by the relay(s).

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