Toyota RAV4 Service Manual: Traction control switch (for 2wd)
Components
Removal
- Disconnect cable from negative battery terminal
Caution:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
- Remove traction control switch (auto lsd switch)
- Detach the 2 claws and remove the switch.
Inspection
- Check traction control switch (auto lsd switch)
- Measure the resistance of the switch.
Standard resistance 
If the result is not as specified, replace the switch.
- Check illumination operation.
- Connect the battery's positive (+) lead to
terminal 5 and negative (-) lead to terminal 4.
Then check that the bulb illuminates.
Ok: bulb illuminates.
If the result is not as specified, replace the switch.
Installation
- Install traction control switch (auto lsd switch)
- Attach the 2 claws to install the switch.
- Connect cable to negative battery terminal
Downhill assist control switch
Components
Removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent ai ...
Other materials:
Rear combination light assembly
Components
Removal
Hint:
Use the same procedures for the rh and lh sides.
The procedures listed below are for the lh side.
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal t ...
Engine coolant temperature circuit
Description
A thermistor, whose resistance value varies according to the ect, is built
into the engine coolant
temperature (ect) sensor.
The structure of the sensor and its connection to the ecm are the same as those
of the intake air
temperature (iat) sensor.
Hint:
When any of dtcs ...
Internal control module random access memory (ram) error
Description
The ecm continuously monitors its own internal memory status, internal
circuits, and output signals
transmitted to the throttle actuator. This self-check ensures that the ecm is
functioning properly. If any
malfunction is detected, the ecm sets the appropriate dtc and illumina ...