Purpose/ Function
The reduction gear transmits the rotation input from the EPS motor, decreasing the rotation speed and increasing the torque simultaneously.
Construction
The reduction gear consists of the worm wheel located on the steering column main shaft and the worm shaft connected to the EPS motor, and is integrated with the steering column.

Operation
The assist torque generated by the EPS motor is transmitted to the worm wheel via the worm shaft drives the steering column main shaft.
The assist torque from the EPS motor is amplified by the reduction ratio (20.33:1) between the worm shaft and worm wheel, and is transmitted to the steering column main shaft.
Primary Gear [Fw6 A EL, Fw6 Ax EL]
Secondary Gear [Fw6 A EL, Fw6 Ax EL]DSC HU/CM Inspection
1. Disconnect the DSC HU/CM connector..
2. Connect the negative battery cable..
3. Attach the tester lead to the DSC HU/CM wiring harness-side connector and
inspect voltage, continuity, or resistance according to the standard (reference)
on the table.
Standard (Reference)
...
Airflow Mode Actuator Inspection [Full Auto Air Conditioner]
CAUTION:
If the lever position exceeds the operation range shown in the figure, the
circuit in the actuator could be damaged. Always perform an actuator operation
inspection with the lever movement within the range shown in the figure.
1. Connect battery positive voltage to airfl ...
Door Adjustment
1. Measure the gap and height difference between the door and the body.
2. Loosen the door hinge installation bolts and adjust the door.
Standard clearance
a: 2.8?3.8 mm {0.12?0.14 in}
b: -1.0?1.0 mm {-0.039?0.039 in}
c: 2.5?4.5 mm {0.10?0.17 in}
d: -1.0?1.0 m ...