Toyota RAV4 (XA40) 2013-2018 Service Manual: Steering angle sensor circuit malfunction

Description
The steering sensor signal is sent to the skid control ecu via the can
communication system. When
there is a malfunction in the can communication system, it is detected by the
steering sensor zero point
malfunction diagnostic function.

Wiring diagram

Inspection procedure
Hint:
- When u0073/94, u0123/62, u0124/95 or u0126/63 is output together with
c1231/31, inspect and
repair the trouble areas indicated by u0073/94, u0123/62, u0124/95 or
u0126/63 first.
- When there are problems with the speed sensor or the yaw rate sensor,
dtcs for the steering sensor
may be output even when the steering sensor is normal. When dtcs for the
speed sensor or yaw rate
sensor are output together with other dtcs for the steering sensor, inspect
and repair the speed
sensor and yaw rate sensor first, and then inspect and repair the steering
sensor.
- Check harness and connector (momentary interruption)
- Using the data list of the intelligent tester, check for
any momentary interruptions in the wire harness and
connectors between the skid control ecu and the
steering sensor (see page bc-23).

Ok:
there are no momentary interruptions.
Hint:
Perform the above inspection before removing the
sensor and connector.

- Check dtc
- Clear the dtc (see page bc-47).
- Turn the ignition switch off
- Turn the ignition switch on again and check that no can
communication system dtc is output.
- Drive the vehicle and turn the steering wheel to the right
and left at a speed of 35 km/h (24 mph) and check that
no speed and yaw rate sensor dtcs are output.
Result 

- Check wire harness (steering sensor - battery and body ground)

- Remove the steering wheel assembly and the column
cover.
- Disconnect the e11 sensor connector.
- Measure the voltage of the wire harness side connector.
Standard voltage 
- Measure the resistance of the wire harness side
connector.
Standard resistance 

Replace steering sensor
- Repair or replace harness and connector (steering sensor to skid
control ecu)
- Reconfirm dtc
- Clear the dtc (see page bc-47).
- Start the engine.
- Drive the vehicle and turn the steering wheel to the right
and left at a speed of 45 km/h (28 mph) or more for
several seconds.
- Check if the same dtc is recorded (see page bc-47).
Result 

End
Description
This dtc is output when the vsc system detects a malfunction in the abs
system.
Inspection procedure
Check dtc for abs system
Clear the dtc (see page bc-47).
Turn t ...
Description
The skid control ecu receives signals from the yaw rate and deceleration
sensor via the can
communication system.
The yaw rate sensor has a built-in deceleration sensor and dete ...
Other materials:
Reassembly
Hint:
Use the same procedures for the rh side and lh side.
The procedures listed below are for the lh side.
Install seat lock release band
Install the band with nut.
Hint:
After installing the band, feed it through the
seatback frame hole towards the rear of the vehicle.
I ...
Checking and replacing fuses
If any of the electrical components
do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.
Checking and replacing
fuses
1. Turn the engine switch to
OFF.
2. Open the fuse box cover.
Engine compartment: Type A
fuse box (if equipped)
Push claws A and B to co ...
Ts and cg terminal circuit
Description
If the vehicle is stationary during sensor check mode, speed sensor
malfunctions cannot be detected. The
vehicle must be driven for speed sensor malfunctions to be detected.
Hint:
Change to sensor check mode by connecting terminals tc and cg of the dlc3,
and turning the ignitio ...