OEM Scion xB ABS Control Module

Scion xB ABS Control Module Parts and Q&A

• Modulator Valve
  44050-12591
  Q: How to remove the ABS Control Module for the Antilock Brakes on Scion xB?

  A:

  The procedure to remove the Antilock Brakes Hydraulic Control Assembly begins by disconnecting the battery cable along with fluid draining from the brakes followed by immediate paint surface washing when fluid contacts occur. Inverse the windshield wiper arm cover followed by both left and right front wiper arm assembly removal. Remove the hood to cowl top seal together with both the left and right cowl top ventilator louver and front Wiper Motor and link. Third you should take off the outer cowl top panel followed by the air cleaner assembly. Remove the brake actuator assembly when you have released the lock lever and disconnected the brake actuator connector while avoiding fluid entry into the disconnected parts. The 6 brake tubes need a union nut wrench for removal from the brake actuator while tube labels indicate their reconnection locations: 1: Front wheel cylinder RH, 2: Front wheel cylinder LH, 3: Rear wheel cylinder RH, 4: Rear wheel cylinder LH, 5: 1st master cylinder, 6: 2nd master cylinder. Unfasten both tube clamps from the actuator bracket before uninstalling the three nuts to remove the brake actuator assembly with its bracket while protecting brake tubes and the wire harness. The end of the procedure involves removing the brake actuator bracket assembly after disassembling its 4 bolts.
• Modulator Valve
  44050-52520
  Q: How to service and repair the ABS Control Module for Antilock Brakes on Scion xB?

  A:

  The first step to service and repair the Antilock Brake Hydraulic Control Assembly starts with disconnecting the negative cable and waiting at least 90 seconds before moving forward to avoid Air Bag and seat belt pretensioner activation. Remove the brake fluid while washing all painted areas that encounter fluid. You should detach the brake actuator assembly with its bracket after releasing the connector latch and then using Special Service Tool: 09023-00101 to separate the six Brake Lines from the actuator before marking them properly for restorative purposes. To detach the brake actuator with the bracket start by removing its 3 bolts then continue by taking off the 2 nuts to separate the brake actuator from the bracket. You must attach the brake actuator to the bracket initially using the 2 nuts before torquing them to 5.4 N.m (55 kgf.cm, 48 in.lbf). Subsequently you should install the brake actuator and bracket together with the 3 bolts torqued to 19 N.m (194 kgf.cm, 14 ft.lbf). The 6 brake lines need to be installed to their designated positions on the brake actuator by using Special Service Tool: 09023-00101 while applying 15 N.m (155 kgf.cm, 11 ft.lbf) torque when not using the tool and 14 N.m (143 kgf.cm, 10 ft.lbf) torque when using it, utilizing a torque wrench with a 30 cm (11.81 in.) fulcrum length. Attach the brake actuator connector then add brake fluid to the reservoir followed by air bleeding from the Brake Master Cylinder and brake line and brake actuator using the vehicle service connect. The service adviser should start by measuring brake fluid in the reservoir before checking for fluid leaks then reconnect the negative battery cable and test the brake actuator with diagnostic tools.