Fig 1: ABS/TCS Control Module Description Outline

Courtesy of MAZDA MOTORS CORP.

The TCS control module is integrated with the ABS, and the integrated module is installed on the lower part of the ABS hydraulic unit.
Each wheel's speed signal, and various types of switch inputs for judging the vehicle's condition are input to the ABS/TCS control module. If the ABS/TSC control module detects from these signals that the drive wheels are spinning, it sends a torque reduction request signal appropriate to the traveling conditions to the PCM. The PCM restrains engine output in accordance with the torque reduction request signal.
The ABS/TCS control module has fail-safe and on-board diagnosis functions. When it detects a malfunction inside the system, it stops TCS operation and illuminates the TCS OFF light and TCS indicator light to inform the driver that there is a malfunction. The malfunction is stored by the TCS/ABS control module. In the diagnosis mode, the ABS/TCS control module outputs the diagnostic trouble code for the malfunction via the data link connector.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Abs/TCS Control Module Description: Outline