ESP® Hydraulic Unit/Control Module Assembly Removal and Installation
| CAUTION | Performing certain prohibited service operations will affect the original performance of the ESP® hydraulic unit / control module assembly. Do not perform the following prohibited service operations: Do not disassemble the ESP® hydraulic unit / control module assembly. Do not loosen the blind plug. Do not remove the motor. Regarding ESP® hydraulic unit / control module assembly removal and installation, confirm specified torque and do not use impact tool to avoid damage. Use care not to allow dust to enter ESP® hydraulic unit / control module. Do not place ESP® hydraulic unit / control module on its side or upside down. Handling it in inappropriate way will affect its original performance. Do not give an impact to hydraulic unit. Brake fluid is extremely damaging to painted surfaces. If brake fluid contacts a painted surface, immediately wipe it off and flush the surface thoroughly with water. The bracket of the ESP® hydraulic unit / control module assembly may has some burrs at the edge and may damage or deform the bushing, resulting in abnormal operation of the ESP® system. Be careful not to scratch bushings with the burr of the bracket when removing / installing the ESP® hydraulic unit / control module assembly from / to the bracket. |
Scheme 36
Scheme 37
Scheme 38
- Disconnect negative (-) cable at battery.
- Disconnect ESP® hydraulic unit/control module assembly connector (1) by pulling down the lock lever (2).
- Loosen flare nuts (1) using special tool and disconnect brake pipes (2) from ESP® hydraulic unit/control module assembly (3). Special Tool 09950-78220 NOTE: Put bleeder plug cap or the like onto pipe to prevent fluid from spilling.
- Remove or loosen ESP® hydraulic unit/control module assembly nuts (1) and remove ESP® hydraulic unit/control module assembly (3) from actuator bracket (2). CAUTION: Be careful not to damage bushing (5). NOTE: If ESP® hydraulic unit/control module assembly nuts are not removed, loosen nuts by the end of screw (4) as shown in the illustration.
Installation
Reverse removal procedure, noting the following points.
Scheme 39
- Be careful not to scratch bushings with the burr of the bracket.
- Tighten brake pipe flare nuts using special tool and ESP® hydraulic unit/control module assembly nuts to specified torque. Special Tool 09950-78220 Tightening torque Brake pipe flare nut (M10) (a): 16 N.m (1.6 kg-m, 12.0 lbf-ft) Brake pipe flare nut (M12) (b): 19 N.m (1.9 kg-m, 14.0 lbf-ft) ESP® hydraulic unit/control module assembly nut (c): 8.0 N.m (0.8 kg-m, 6.0 lbf-ft)
- Bleed air from brake system. (Blake fluid replacement)
- Check for leakage of brake fluid and perform ESP® hydraulic unit operation check. (ESP® Hydraulic Unit Operation Check)
Front Wheel Speed Sensor Removal and Installation
Reference: FRONT AND REAR WHEEL SPEED SENSOR ON-VEHICLE INSPECTION
| CAUTION | Failure to take proper precautions when removing and installing the wheel speed sensor may lead to damaged to the wheel speed sensor harness. Do not pull on or twist the wire harness when removing and installing the sensor. |
Scheme 40
- Disconnect negative (-) cable at battery.
- Hoist vehicle a little and remove wheel.
- Remove clips (1) and separate front fender lower lining (3) from front fender lining (2).
- Remove clips (4) and disconnect front wheel speed sensor connector (5).
- Remove front wheel speed sensor bolt (6).
- Remove front wheel speed sensor (7) from steering knuckle.
Reference: FRONT AND REAR WHEEL SPEED SENSOR INSPECTION
Reverse removal procedure, noting the following points.
Scheme 41
- Check detective area of wheel speed sensor (1) is not covered with iron powder.
- Tighten wheel sensor bolt (2) to specified torque. Tightening torque Front wheel speed sensor bolt (a): 11 N.m (110 kg-m, 8.5 lbf-ft)
- Confirm that there is no space between front wheel speed sensor and steering knuckle (3).
- Install wheel, see «WHEEL (WITH TIRE) REMOVAL AND INSTALLATION»(ref-585600-S32306069432013111200000) .
Rear Wheel Speed Sensor Removal and Installation
Reference: FRONT AND REAR WHEEL SPEED SENSOR ON-VEHICLE INSPECTION
| CAUTION | Failure to take proper precautions when removing and installing the wheel speed sensor may lead to damaged to the wheel speed sensor harness. Do not pull on or twist the wire harness when removing and installing the sensor. |
Scheme 42
- Disconnect negative (-) cable at battery.
- Hoist vehicle a little and remove wheel.
- Disconnect rear wheel speed sensor connector (1).
- Remove rear wheel speed sensor bracket bolt (2) and wheel speed sensor bolt (3).
- Remove rear wheel speed sensor (4) from suspension knuckle.
Reference: FRONT AND REAR WHEEL SPEED SENSOR INSPECTION
Reverse removal procedure, noting the following points.
Scheme 43
- Check detective area is not covered with iron powder.
- Tighten rear wheel speed sensor bolt (1) and rear wheel speed sensor bracket bolt (2) to specified torque. Tightening torque Rear wheel speed sensor bolt (a): 11 N.m (110 kg-m, 8.5 lbf-ft) Rear wheel speed sensor bracket bolt (b): 25 N.m (250 kg-m, 18.5 lbf-ft)
- Confirm that there is no space between rear wheel speed sensor (3) and suspension knuckle (4).
- Install wheel, see «WHEEL (WITH TIRE) REMOVAL AND INSTALLATION»(ref-585600-S32306069432013111200000) .
Front Wheel Speed Sensor Encoder Removal and Installation
Refer to FRONT WHEEL HUB AND STEERING KNUCKLE REMOVAL AND INSTALLATION .
Rear Wheel Speed Sensor Encoder Removal and Installation
Refer to REAR WHEEL HUB AND SUSPENSION KNUCKLE REMOVAL AND INSTALLATION (2WD MODEL):REAR and REAR WHEEL HUB AND SUSPENSION KNUCKLE REMOVAL AND INSTALLATION (4WD MODEL):REAR .
Steering Angle Sensor Removal and Installation
Reference: STEERING ANGLE SENSOR ON-VEHICLE INSPECTION
Refer to STEERING ANGLE SENSOR REMOVAL AND INSTALLATION .
Reference: ESP® OFF SWITCH INSPECTION
Reverse removal procedure.