OEM Scion tC Control Arm

Scion tC Control Arm Parts and Q&A

• Lower Control Arm, Driver Side
  48069-21020
  Q: How to remove the Control Arm from the rear suspension No. 1 assembly on Scion tC?

  A:

  A vehicle technician should start by taking off the rear wheel before proceeding with the removal of the rear suspension No. 1 arm assembly. The complete process of removing the No. 3 Parking Brake Cable assembly involves taking out two bolts followed by disconnecting its cable. A successful connectivity separation occurs through both steps involving the removal of the bolt from the sensor wire connector. The rear stabilizer link assembly needs disposal when workers detach the stabilizer link LH and eliminate the nut while using a 5mm hexagon wrench to retain the stud if it rotates with the nut. Support the No. 1 suspension arm LH by removing the bolt to separate the member side lower control arm LH from the rear suspension member. Remove the clip and the nut as well. Use Special Service Tool: 09610-20012 to take off the lower control arm LH from the axle carrier LH while safeguarding the dust cover from damage. The rear automotive assembly necessitates disc brake caliper removal before removing its corresponding disc. Detach the clip and nut before using Special Service Tool: 09628-62011 to disconnect the axle carrier LH front side from the No. 1 suspension arm LH. Afterward, hang the upper control arm onto the axle carrier LH side by using a wire or equivalent. Disconnect the suspension No. 1 arm LH from the axle carrier LH side by first removing its bolt then its nut while maintaining the nut in place. The same steps should be followed to disconnect the Shock Absorber with coil spring and the rear side suspension No. 1 arm LH but maintain hold of the nut until bolt removal. The suspension No. 1 arm LH requires the 3 bolt removal before you can detach the nut followed by the suspension arm bracket LH and suspension support stopper.
• Lower Control Arm, Passenger Side
  48068-21020
  Q: How to install the Control Arm in the rear suspension No. 1 arm assembly on Scion tC?

  A:

  The procedure for rear suspension No. 1 arm assembly installation starts with suspension support stopper and suspension arm bracket LH installation followed by nut temporary tightening. For installation of the rear side suspension No. 1 arm LH you should temporarily tighten both the bolt and nut when holding the nut in position during bolt installation. Ordinarily tighten 3 fasteners to a torque value of 65 Nm (663 kgf-cm, 48 ft-lbf). Begin by attaching the front side rear axle carrier LH to the suspension No. 1 arm LH while loosely tightening the nut. Then install the axle carrier LH onto No. 1 suspension arm LH and loosely fasten both the bolt and nut. Secure the Shock Absorber with coil spring on the suspension No. 1 arm LH after temporarily tightening both the bolt and nut. The first step involves attaching the lower control arm LH through its bolt then securing it but without full tightening to the axle carrier LH using a spare nut. Secure the rear disc brake caliper assembly followed by the rear stabilizer link assembly while using a 5 mm hexagon wrench for any ball joint rotation during stabilizer link LH nut tightening to 44 Nm (449 kgf-cm, 32 ft-lbf). Fasten the skid control sensor wire using a bolt which needs tightening to 5.0 Nm torque before connecting the skid control sensor wire. Fasten the No. 3 Parking Brake Cable via two bolts achieving 6.0 Nm (61 kgf-cm, 53 in-lbf) torque for each one, then install the rear wheel applying 103 Nm (1,050 kgf-cm, 76 ft-lbf) torque. Bounce the vehicle to stabilize suspension followed by full bolt tightening on the rear suspension No. 1 arm assembly during which the vehicle should be empty with the nut set to 110 Nm (1,120 kgf-cm, 81 ft-lbf) and the bolt set to 115 Nm (1,170 kgf-cm, 85 ft-lbf) and the bolt and nut set to 140 Nm (1,430 kgf-cm, 103 ft-lbf) while holding the nut in place during bolt installation. The installation process requires tightening the nut to 105 Nm (1,070 kgf-cm, 77 ft-lbf) before inserting the clip from the vehicle's front side. For proper alignment the holes of the clip should be adjusted by tightening the nut while keeping the tightening angle below 60 degrees. Prior to finishing the bolt and nut installation fully tighten the hardware to 74 Nm (755 kgf-cm, 55 ft-lbf) by maintaining constant pressure on the nut. The lower control arm assembly requires tightening the nut to 105 Nm (1,070 kgf-cm, 77 ft-lbf) followed by clip installation while aligning holes as needed before inserting the clip from behind the vehicle. Last, bolt tightening to 115 Nm (1,170 kgf-cm, 85 ft-lbf) is necessary. The last stage of inspection includes both alignment adjustments of rear wheels and ABS speed sensor signal testing.