OEM 2005 Scion tC Control Arm

2005 Scion tC Control Arm Parts Q&A

• Q: How to replace the Rear Control Arm Assembly No.1 LH on 2005 Scion tC?

  A: First step for Rear Suspension Arm Assembly No.1 LH replacement is to remove the rear wheel. Remove the parking brake cable assembly No.3 through dismantling its two bolts. To disconnect the skid control sensor wire start by removing its bolt as well as wire bracket before unplugging the connector. Detach the back stabilizer link assembly LH on the left side by removing its nut but maintain the ball joint steady with a hexagon (5 mm) wrench since the nut turns with the stud. The worker supports the rear suspension arm assembly No.1 LH to detach the bolt which separates the member side lower control arm assembly LH. Further removal requires the worker to remove the clip and nut. Special Service Tool 09610-20012 can be used to detach the lower control arm assembly LH from the rear axle carrier sub-assembly LH without harming the dust cover. The technicians should first remove the rear disc brake caliper assembly LH along with the rear disc. The first procedure for removing the rear suspension arm assembly No.1 LH includes removing its clip and nut before installing Special Service Tool: 09628-62011 to separate the rear axle carrier sub-assembly LH front side from the assembly while protecting the dust cover and suspending the upper control arm assembly with a wire on the sub-assembly side. Segregate the rear axle carrier sub-assembly LH rear side from the rear suspension arm assembly No.1 LH by disconnecting both bolt and nut while also detaching the bolt and nut from the rear shock absorber with coil spring. Start by removing the bolt and nut at the rear of the rear side rear suspension arm assembly No.1 LH then proceed with removing the 3 bolts to detach the assembly along with its accompanying nut and rear suspension arm bracket assembly LH and rear suspension support stopper. Begin installation of the rear suspension support stopper and rear suspension arm bracket assembly LH by tightening the nut twice while protecting the nut from rotation. Then install the rear side rear suspension arm assembly No.1 LH before tightening the bolt and nut. Threads of 3 bolts need tightening to 65 Nm (663 kgf-cm, 48 ft. lbs.) before attaching the front side rear axle carrier sub-assembly LH to the rear suspension arm assembly No.1 LH while applying temporary torque on the nut. Fit the axle carrier sub-assembly LH to the rear suspension arm assembly No.1 LH while securing the bolt and nut but do not fully tighten them. Then mount the rear shock absorber with coil spring to the rear suspension arm assembly No.1 LH with the bolt and nut only hand-tightened. Curently fasten the bolt on the lower control arm assembly LH before attaching it to the rear axle carrier LH and tightening its nut. After installing the rear disc proceed to put on the rear disc brake caliper assembly LH then attach the rear stabilizer link assembly LH with its nut first tightening to 44 Nm (449 kgf-cm, 32 ft. lbs.). Secure the skid control sensor wire through the installation of wire bracket with bolt tightened to 5.0 Nm (51 kgf-cm, 44 inch lbs.) followed by connector reattachment. Proceed with assembly of the parking brake cable assembly No.3 by connecting it with 2 bolts under 6.0 Nm (61 kgf-cm, 53 inch lbs. torque) while the rear wheel requires reassembly at 103 Nm (1,050 kgf-cm, 76 ft. lbs.). Tighten the rear suspension arm assembly No.1 LH nut to 110 Nm while holding the nut stable during installation and conducting the work with an empty vehicle using an initial torque value of 110 Nm. The bolt torque should be set to 115 Nm and the combined bolt and nut torque to 140 Nm. Keep the nut from rotating while installing it. Screw the nut to 105 Nm (1,070 kgf-cm, 77 ft. lbs.) torque and attach the clip but readjust its holes when needed by rotating the nut at an angle beneath 60 degrees. The procedure requires full torque on the bolt and nut to 74 Nm (755 kgf-cm, 55 ft lbs) while maintaining pressure on the nut to prevent rotation until you tighten the lower control arm assembly LH with the nut to 105 Nm (1,070 kgf-cm, 77 ft lbs) and fully tighten the bolt to 115 Nm (1,170 kgf-cm, 85 ft lbs). The process ends with performing an inspection of the rear wheel alignment and testing the ABS speed sensor signal.