Toyota RAV4 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:
Differential case
Components
Disassembly
Remove front differential ring gear
Place the matchmarks on the ring gear and
differential case.
Remove the 14 bolts.
Using a plastic-faced hammer, tap on the ring gear
to remove it from the case.
Remove front differential case ...
Terminals of ecu
Check instrument panel junction block (main body ecu)
Measure the voltage of the connectors.
If the result is not as specified, the junction block
(main body ecu) may have a malfunction. ...
Disassembly (2005/11-2006/01)
Remove front axle inboard joint boot no. 2
Clamp lh
One touch type:
Using a screwdriver, remove the no. 2 Inboard
joint boot clamp, as shown in the illustration.
Claw engagement type:
Using needle-nose pliers, remove the no. 2
Inboard joint boot clamp, as shown in t ...