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Home >> Chevrolet >> 2019 >> Cruze Premier, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P057B-P208D)) >> Diagnostic Information and Procedures >> DTC P10DA-P10DD or P21CB (Notchback) >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

For an overview of the component/system, refer to: Exhaust Aftertreatment System Description

Circuit Description
B+ - Relay Coil - KR121A Reductant Control Module Relay 1 & KR121B Reductant Control Module Relay 2 Supplied from a fuse.
B+ - Relay Switch - KR121A Reductant Control Module Relay 1 Supplied from a fuse.
B+ - Relay Switch - KR121B Reductant Control Module Relay 2 Supplied directly from the battery.
Control - Relay Coil - KR121A Reductant Control Module Relay 1 & KR121B Reductant Control Module Relay 2 The output circuit is switched to ground to activate the component.
Ground - Component - K115 Reductant Control Module Chassis Ground
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