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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> DTC B3140 or B3150: Driver Door Unlock/Lock Switch Circuit >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to: Power Door Locks Description and Operation 

Circuit Description
Signal The control module input circuit has an internal resistance connected to 12 V.
Ground Chassis Ground
Component Description
S13D Door Lock Switch - Driver The switch has a normally open contact. When the switch is activated, the signal circuit to the control module is grounded.
S13P Door Lock Switch - Passenger The switch has a normally open contact. When the switch is activated, the signal circuit to the control module is grounded.
K9 Body Control Module The module controls various vehicle functions like lighting, central door locking, power windows, etc.
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