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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 268 (Disc Brakes) >> Diagnostic Information and Procedures >> DTC C004A >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

The Brake System Control Module has two analog inputs for the front axle brake pad wear sensors and two analog inputs for a rear axle brake pad wear sensors. The brake system control module supply voltage to the brake pad wear sensor and the sensor is grounded to the vehicle ground. The brake system control module diagnose any issues with the power supply for the sensors and set " invalid" if there is a failure detected in the supply voltage system.



The Brake System Control Module has one analog input for a front axle brake pad wear sensor and one analog input for a rear axle brake pad wear sensor. The brake system control module supply voltage to the brake pad wear sensor and the sensor is grounded to the vehicle ground. The brake system control module diagnose any issues with the power supply for the sensors and set " invalid" if there is a failure detected in the supply voltage system.