ABS Motor Pack Replacement

REMOVAL PROCEDURE





1. Remove the Brake Modulator Assembly.
2. Remove the Toe head screws (5) attaching the gear cover.
3. Remove the gear cover (4) from the Brake Motor pack (1).
4. Remove the Tome head screws (6) that attach the Brake Motor Pack (1) to the Hydraulic Modulator (2).

Notice: Use care when handling the motor pack to avoid damaging the motor pack connector. Make sure brake fluid does not accidentally intrude into the motor pack. Brake fluid in the motor pack may cause a premature failure of the motor pack.

Notice: Use care when handling the motor packs. Replace the motor packs if the motor packs are dropped or damaged during handling.

Important: If the disassembly of the modulator assembly was caused by an ABS hydraulic functional test that did not pass, the Automated ABS brake motor pack Diagnosis Test should be performed. Refer to Scan Tool diagnostics in Antilock Brakes. The Automated ABS brake motor pack Diagnosis Test isolates the motor pack or brake modulator.

Important: No repair of the motor pack is authorized. Replace as an assembly.

5. Remove the Brake Motor Pack (1) from the Hydraulic Modulator (2).

INSTALLATION PROCEDURE





1. Install the Brake Motor Pack (1) to the Hydraulic Modulator (2).

Notice: Refer to Fastener Notice in Service Precautions.

Important: Use care when handling the motor packs. Replace the motor packs if the motor packs are dropped or damaged during handling.

Align each of the three motor pack pinions with the modulator gears.
2. Install the Torx head screws (6) that attach the Brake Motor Pack (1) to the Hydraulic Modulator (2).
^ Tighten the Torx head screws to 5 Nm (44 inch lbs.).
3. Install the gear cover to the Brake Motor pack.
4. Install the Torx head screws attaching the gear cover.
^ Tighten the Torx head screws to 4 Nm (36 inch lbs.).
5. Install the Brake Modulator Assembly.
6. Using the scan tool, perform the Motor Rehome Procedure.
7. Perform the ABS Diagnostic System Check