STEERING ± On-vehicle Service
37A-11
POWER STEERING OIL PRESSURE SWITCH
CHECK
1. Disconnect the pressure hose from the oil pump and
connect the special tools.
2. Bleed air. Without the vehicle moving, turn the steering
wheel several times to raise the fluid temperature to 50
to 60_C.
3. Idle the engine.
4. Disconnect the oil pressure switch connector and set an
ohmmeter in position.
5. Gradually close the shut-off valve in the pressure gauge
to increase hydraulic pressure. Check that the hydraulic
pressure activating the switch meets the standard value.
Standard value: 1.5 ± 2.0 MPa
6. Gradually open the shut-off valve and reduce the hydraulic
pressure. Check that the hydraulic pressure deactivating
the switch meets the standard value.
Standard value: 0.7 ± 2.0 MPa
7. Remove the special tools and tighten the pressure hose
to the specified torque.
Tightening torque: 57 Nm
8. Bleed the system.
BALL JOINT DUST COVER CHECK
1. Check the dust cover for cracks or damage by pushing
it with finger.
2. If the dust cover is cracked or damaged, replace the tie
rod end.
NOTE
A cracked or damaged dust cover may damage the ball
joint.
Temperature
gauge
Pressure
gauge
(MB990662)
Shut-off valve
Adapter
(MB990993)
Oil
pump
Reservoir
Adapter
(MB990994)
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