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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Antilock Brake System - Except Hybrid (Hp4)) >> Diagnostic Information and Procedures >> DTC C124F or C1250-C1254 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to:ABS Description and Operation 

Circuit Description
B+ - Terminal 1 The output circuit is switched from ground to 12 V to activate the component.
Low Reference Grounded through the control module.
Component Description
B119 Multi-axis Acceleration Sensor The yaw rate, lateral and longitudinal acceleration sensors are internal to the inflatable restraint sensing and diagnostic module.
K71 Transmission Control Module The control module receives information from a variety of sensors, switches and serial data information from other control modules. This information is used to control a combination of solenoid valves to obtain the correct line pressure, gear ratio and torque converter clutch operation.
K17 Electronic Brake Control Module The control module K17 can increase and decrease the brake pressure on all 4 wheels individually in order to fulfill these functions:
  • Antilock Braking
  • Traction Control
  • Vehicle Stability Control

The control module K17 can also influence the following control modules to limit the amount of produced torque:
  • K20 Engine Control Module
  • K71 Transmission Control Module