1. INSPECT VANE PUMP SHAFT AND BUSHING IN VANE PUMP FRONT HOUSING
(a) Using a micrometer, measure the outer diameter [a] of the vane pump shaft with pulley.
(b) Using vernier calipers, measure the inner diameter [b] of the vane pump front housing bushing.
(c) Calculate the oil clearance.
Oil clearance = Inner diameter of the bushing [b] - Outer diameter of the shaft [a]
Maximum oil clearance: 0.07 mm (0.0028 in.)
If the oil clearance exceeds the maximum, replace the vane pump assembly.
2. INSPECT VANE PUMP ROTOR AND VANE PUMP PLATE CLEARANCE
(a) Using a micrometer, measure the thickness of the vane pump plates.
Standard thickness: 1.405 to 1.411 mm (0.05531 to 0.05555 in.) If the thickness is not within the specified range, replace the vane pump assembly.
(b) Using a feeler gauge, measure the clearance between the side face of the vane pump rotor groove and the vane pump plates.
Maximum clearance: 0.03 mm (0.0012 in.) If the clearance exceeds the maximum, replace the vane pump assembly.
3. INSPECT FLOW CONTROL VALVE ASSEMBLY
(a) Coat the flow control valve assembly with power steering fluid and check that it falls smoothly into the flow control valve due to its own weight.
If the control valve does not fall into the hole smoothly, replace the vane pump assembly.
(b) Check the flow control valve assembly for leaks.
Close one of the holes and apply compressed air, 392 to 490 kPa (4 to 5 kgf/cm2, 57 to 71 psi), into the opposite side hole, and confirm that air does not come out from the holes in the ends of the flow control valve assembly.
If air leaks, replace the vane pump assembly.
4. INSPECT FLOW CONTROL VALVE COMPRESSION SPRING
(a) Using vernier calipers, measure the free length of the flow control valve compression spring.
Minimum free length: 29.2 mm (1.150 in.) If the length is less than the minimum, replace the vane pump assembly
5. INSPECT PRESSURE PORT UNION
If the union seat in the pressure port union is severely damaged, replace the vane pump assembly.
6. INSPECT TOTAL PRELOAD
(a) Check that the pump rotates smoothly without abnormal noise.
(b) Temporarily install the service bolt.
Recommended service bolt: Thread diameter: 10 mm (0.39 in.) Thread pitch: 1.25 mm (0.0492 in.) Bolt length: 50 mm (1.97 in.)
(c) Using a torque wrench, check the pump rotating torque.
Rotating torque: 0.27 N*m (2.8 kgf*cm, 2.4 in.*lbf) or less
If the rotating torque is not as specified, check the vane pump housing oil seal.
Situations when it is necessary to contact dealers before towing
The following may indicate a problem with your transaxle. Contact
your Toyota dealer or commercial towing service before towing.
The engine is running but the vehicle does not move.
The vehicle makes an abnormal sound
Towing with a sling-type truck
Do not tow with a sling-type truck
to p ...
Problem symptoms table
POWER WINDOW CONTROL SYSTEM (W/O JAM PROTECTION)
Symptom
Suspected Area
All power windows do not operate
PWR fuse
Power window relay (Marking: P/W)
Ignition switch
Power window regulator master switch
Power window regulator motor assembly
...
Rear wiper motor and bracket
COMPONENTS
REMOVAL
1. REMOVE REAR WIPER ARM
Remove the rear wiper arm head cap from the rear
wiper arm.
Remove the nut and the rear wiper arm.
2. REMOVE BACK DOOR GARNISH CENTER
3. REMOVE BACK DOOR SIDE GARNISH LH
4. REMOVE POWER BACK DOOR ROD
5. REMOVE BACK DOOR ...