Metro L3-061 1.0L VIN 6 TBI (1998)
IMPORTANT: 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 brake modulator motor pack 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 Brake System. 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 the motor pack as an assembly.
INSTALLATION PROCEDURE
1. With the hydraulic modulator upside down, and the gears facing you, rotate each hydraulic modulator gear counterclockwise until movement
stops. this procedure will position the pistons very close to the top of the modulator bore, simplifying the brake bleeding procedure.
2. Install the Brake Motor Pack (1) to the Hydraulic Modulator (2).
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.
3. Install the Torx head screws (6) that attach the Brake Motor Pack (1) to the Hydraulic Modulator (2).
^
Tighten the four Torx head screws to 5 Nm (44 inch lbs.).
4. Install the gear cover (4) to the Brake Motor pack (1).
5. Install the six Torx head screws (5) that attach the gear cover (4).
^
Tighten the six Torx head screws to 4 Nm (36 inch lbs.).
6. Install the Hydraulic Modulator Assembly.
7. Using the scan tool, perform the Motor Rehome Procedure.
8. Perform the Diagnostic System Check
Brake Modulator Assembly Replacement
REMOVAL PROCEDURE
CAUTION: To help avoid personal injury, due to a retained load on the brake modulator, the Gear Tension Relief function of the scan tool
must be performed prior to removal of the ABS brake modulator/motor pack assembly.
1. Use the Scan Tool in order to perform the Gear Tension Relief Sequence.
2. Disconnect the Negative (-) battery cable. Refer to Battery.
3. Disconnect the two brake solenoid valve electrical connectors.
