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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 87 (Lighting System - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> Stop Lamps Malfunction >> Scan Tool Functions

Scan Tool Functions

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
K9 Body Control Module - Brake Pedal Position Data

Data Parameter Description
Brake Pedal Applied The parameter should change between Active and Inactive when pressing and releasing the brake pedal
K219 Lighting Control Module - Control Functions

Control Function Description
Left Turn Signal/Stop Lamp The control function will control the left turn signal/stop lamp on/off
Right Turn Signal/Stop Lamp The control function will control the right turn signal/stop lamp on/off
Center Stop Lamp The control function will control the center high mounted stop lamp (CHMSL) on/off
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