Electronic Brake Control Module: Service and Repair

Anti-Lock Brake System (ABS) Module























Removal and Installation

NOTE: On vehicles equipped with Roll Stability Control (RSC(R)), the ABS module and the Hydraulic Control Unit (HCU) are calibrated to one another. Do not swap ABS modules between RSC(R)-equipped vehicles.

NOTE: On vehicles equipped with RSC(R), the ABS module is available separately from the HCU and should be serviced separately. However, if the RSC(R)-equipped vehicle requires a new HCU, then the ABS module and the HCU must be installed as an assembly. Make sure to use the most recently released service parts.

NOTE: When installing a new ABS module/HCU assembly, it must be configured (either by download/upload or uploading the as-built data method).

1. Release the Air Cleaner (ACL) cover retaining clips and disconnect the Mass Air Flow (MAF) sensor electrical connector.

2. Loosen the ACL outlet clamp and disconnect the ACL cover from the outlet pipe.
- To install, tighten to 4 Nm (35 lb-in).

3. Remove the 3 HCU bracket-to-frame bolts.
- To install, tighten to 20 Nm (177 lb-in).

4. Disconnect the ABS module electrical connector.

5. Remove the 4 ABS module bolts and the ABS module.
- To install, tighten to 2 Nm (18 lb-in).

6. To install, reverse the removal procedure.

7. If installing a new ABS module on a vehicle equipped with RSC(R), configure the ABS module.

8. If installing a new ABS module on a vehicle equipped with RSC(R), calibrate the RSC(R) sensor. Connect the scan tool and carry out the IVD Initialization sequence.