Bleeding

BLEEDING

CAUTION:
At low temperature the fluid viscosity is so high that air bleeding becomes degenerated. Air bleeding should be done at normal temperatures {10 to 30°C (50 to 86°F)}.

1. Raise the vehicle.

2. Remove the engine room under cover front B assembly. Service and Repair.)





3. Remove the bleeder screw cap of the transfer, then connect the vinyl hose.
4.
CAUTION:
Before connecting or disconnecting scan tool, always turn the ignition switch to the LOCK (OFF) position.

Connect scan tool to the data link connector.(Refer to Scan Tool Testing and Procedures.)
5. Position the steering wheel in a straight ahead direction.
6. Turn the ignition switch to the "ON" position.
7. Perform the actuator test (item No. 01) of scan tool to forcibly activate the hydraulic unit.
NOTE:

- The forced activation (item No. 01: Air bleeding mode) is continued for 5 minutes, then it will be cancelled automatically. Also, using the clear key on the scan tool, the activation can be forcibly cancelled.
- When the hydraulic unit functions are stopped due to the fail-safe, the forced activation cannot be performed.

8. From the straight-ahead position, gradually rotate the steering wheel to the right or left. Loosen the bleeder screw, and check that the air is bled with fluid.





9.
CAUTION:

- During the air bleeding, fill the fluid so that the fluid level constantly remains above the oil filter. If the fluid level becomes lower than the oil filter, an air layer will be generated. This causes the fluid level not to exceed the oil filter.
- When the fluid level drops under the oil filter, remove the trunk room side trim (RH) Service and Repair ), and pump the larger diameter-side of the reservoir hose to eliminate the air layer. Then fill up the fluid until its level exceeds the oil filter.

After bleeding the air, tighten the bleeder screw.
10. Repeat Steps 7 and 8 for two to three times. After checking that air mixing is eliminated, tighten the bleeder screw to the specified torque.
Tightening torque: 5.0± 1.0Nm (44± 9 in-lb)
11.
CAUTION:
If the air bleeding is insufficient, the noise from the hydraulic unit occurs, which may deteriorate the pump durability.

After the air bleeding is complete, check the fluid level. Active Yaw Control (AYC) Fluid Level Check.)
12. Install the engine room under cover front B assembly. Service and Repair.)