Toyota RAV4 Service Manual: Seat heater 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 airbag and seat belt pretensioner activation.
- Remove switch base (see page ip-18)
- Remove seat heater switch
- Using a screwdriver, detach the 2 claws and remove the switch.
Hint:
Tape the screwdriver tip before use.
Inspection
- Inspect seat heater switch
- Measure the resistance of the seat heater switch when the switch is operated.
Standard resistance
For lh
For rh 
If the result is not as specified, replace the switch.
- Check that the seat heater switch indicator light illuminates when the switch is operated.
Ok
For lh 
For rh
If the result is not as specified, replace the switch.
- Check that the seat heater switch illuminates.
Ok
If the result is not as specified, replace the switch
Installation
- Install seat heater switch
- Attach the 2 claws to install the switch.
- Install switch base (see page ip-27)
- Connect cable to negative battery terminal
Lumbar support adjuster assembly
Inspection
Inspect lumbar support adjuster assembl
Check operation of the lumbar support adjuster.
Check if the lumbar support adjuster moves
smoothly when the battery is connect ...
Front seatback heater
Inspection
Inspect front seatback heater assembly
lh
Measure the resistance of the seatback heater.
Standard resistance
If the result is not as specified, replace the seatback
he ...
Other materials:
Active test
Hint:
Performing an active test enables components
including the relays, vsv (vacuum switching valve) and
actuators, to be operated without removing any parts.
The active test can be performed with the intelligent
tester. Performing the active test as the first step of
troubleshooting is one ...
Problem symptoms table
When a "normal" code is output during a dtc check but
the problem is still occurring, use the problem symptoms
table. The suspected areas (circuits or parts) for each
problem symptom are in the table. The suspected areas
are listed in order of probability. A description of each of
the ...
Oxygen (a/f) sensor pumping current circuit
Description
Refer to dtc p2195 (see page es-292).
Monitor description
The air-fuel ratio (a/f) sensor varies its output voltage in proportion to
the air-fuel ratio. If the a/f sensor
impedance (alternating current resistance) or output voltage deviates greatly
from the standard range ...