Hydraulic Pressure Check
- Remove the rear wheel (RH), then remove the rear wheel splash shield. (Refer to SPLASH SHIELD -- LANCER EVOLUTION .)
- Raise the vehicle.
- Disconnect the hydraulic unit from the ACD pressure tube assembly. Then, connect the special tool below to the hydraulic unit side.
- Hose adapter (MB991705)
- Oil pressure gauge (MD998330)
- Bleed the system. (Refer to SHIFT LOCK MECHANISM CHECK
).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 HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) .)
- Turn the ignition switch to the "ON" position.
- Perform the actuator test (item No. 05) of scan tool to forcibly activate ACD.NOTE:
- The forced activation (item No. 05: ACD operation check mode) is continued for 1 minute, then it will be canceled automatically. Also, using the clear key on the scan tool, the activation can be forcibly canceled.
- When the ACD functions are stopped due to the fail-safe, the forced activation cannot be performed.
CAUTION: During the hydraulic pressure check, fill the fluid so that the fluid constantly remains in the oil reservoir. - Check that the generated hydraulic pressure of the hydraulic unit is within the standard value.
Standard valve: 0.9 - 1.1 MPa (130 - 159 psi)
- If the measured value exceeds the standard value, replace the hydraulic unit.
- After applying oil to the flare nut thread of ACD pressure tube assembly, connect the assembly to the hydraulic unit, then tighten to the specified torque.
Tightening torque: 26 ± 4 N.m (19 ± 3 ft-lb)
- Perform the air bleeding. (Refer to BLEEDING .)