Toyota RAV4 (XA40) 2013-2018 Service Manual: Torque sensor
Description
The torque sensor converts the rotation torque input from the steering wheel into electric signals and sends them to the power steering ecu.
Wiring diagram
Inspection procedure
- Check connector connection condition (torque sensor - ecu)
- Check the installation condition of the torque sensor connector.
Ok: torque sensor connector is securely installed to the power steering ecu.
Result 
- Reconfirm dtc
- Reinstall the torque sensor connector.
- Check for dtcs.
Ok:
dtc is not output. 
- Inspect torque sensor
- Turn the ignition switch on.
- Measure the voltage of the ecu.
Standard voltage
Proceed to next circuit inspection shown in problem symptoms table
Diagnostic trouble code chart
Hint:
If any dtcs are displayed during the dtc check, inspect the
circuit listed for these dtcs. For details of each dtc, refer to
the page indicated in the dtc chart.
Hint:
: Warning
...
Short in motor circuit
Description
The power steering ecu supplies current to the power steering motor through
this circuit.
Inspection procedure
Reconfirm dtc
Check for dtc.
Ok:
dtc is not output.
...
Other materials:
Disassembly
Remove park/neutral position switch assembly
Remove the nut, washer and control shaft lever.
Using a screwdriver, pry off the lock plate.
Remove the nut and lock plate.
Remove the 2 bolts and pull out the switch.
Remove breather plug hose
Remove oil coo ...
Inspection
Inspect cylinder head for warpage
Using a precision straightedge and feeler gauge,
measure the warpage of the contact surfaces of the
cylinder block and manifolds.
Maximum warpage:
0.08 Mm (0.0032 In.)
If the warpage is greater than the maximum, replace
the cylinder head sub-a ...
Data list / active test
Active test
Hint:
Performing the intelligent tester active test allows
relay, vsv, actuator and other items to be operated
without removing any parts. Performing the active
test early in troubleshooting is one way to save time.
The data list can be displayed during the active
test.
...
