ABS Module Calibration

When a new ABS module, HCU  , RCM  or steering wheel rotation sensor is installed, the ABS module must be calibrated. The calibration procedure is required for the ABS module to learn the "zero-position" of the various ESC  sensors and components.

If a DTC is logged for any component of the ESC  system, the DTC must be repaired and then cleared before carrying out the calibration procedure. The need to calibrate the ABS module is also indicated by the sliding-car icon in the IPC  flashing once every 2 seconds. The indicator flashes after clearing the DTCs that are associated with the ESC  systems.

To calibrate the ABS module, carry out the IVD Initialization sequence using the scan tool. When carrying out the calibration procedure, the following criteria must be met.

• The vehicle must be on a level surface.
• The vehicle must not be moving.
• The transmission must be in NEUTRAL.
• The brake pedal must be applied.

If a DTC is retrieved after calibration, refer to the ABS MODULE DTC CHART .