Toyota Sienna Service Manual: Inspection
1. INSPECT SEAT HEATER SWITCH LH
- Measure the resistance of the seat heater switch when the switch is operated.
Resistance
If the result is not as specified, replace the switch.
HINT: As the dial is being turned, the resistance changes gradually.
- Push the seat heater switch ON and check that the
seat heater switch indicator illuminates when the
switch is operated.
OK
If the result is not as specified, replace the switch.
- Check the seat heater switch illumination.
OK
If the result is not as specified, replace the seat heater switch or bulb.
2. INSPECT SEAT HEATER SWITCH RH
- Measure the resistance of the seat heater switch when the switch is operated.
Resistance
If the result is not as specified, replace the switch.
HINT: As the dial is being turned, the resistance changes gradually.
- Push the seat heater switch ON and check that the seat heater switch indicator illuminates when the switch is operated.
OK
If the result is not as specified, replace the switch.
- Check the seat heater switch illumination.
OK
If the result is not as specified, replace the seat heater switch or bulb.
3. INSPECT FRONT SEAT BACK HEATER ASSEMBLY LH
- Measure the resistance of the seatback heater.
Resistance
If the result is not as specified, replace the seatback heater assembly.
4. INSPECT FRONT SEAT BACK HEATER ASSEMBLY RH
- Measure the resistance of the seatback heater.
Resistance
If the result is not as specified, replace the seatback heater assembly.
5. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY LH
- Measure the resistance of the seat cushion heater.
Resistance
If the result is not as specified, replace the seat cushion heater assembly.
6. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY RH
- Measure the resistance of the seat cushion heater.
Resistance
If the result is not as specified, replace the seat cushion heater assembly.
On-vehicle inspection
1. CHECK SEAT HEATER CONTROL (WIRE HARNESS
SIDE)
Disconnect the connector from the seat heater
control.
Measure the voltage and resistance of each
terminal of the wire harne ...
Front seat assembly (for Flat Type)
COMPONENTS
...
Other materials:
On-vehicle inspection
1. INSPECT REAR AXLE HUB BEARING BACKLASH
(a) Using a dial gauge, check for backlash near the
center of the axle hub.
Maximum:
0.05 mm (0.0020 in.)
If backlash exceeds the maximum, replace the axle
hub assembly.
NOTICE:
Ensure that the dial gauge is set at right angles
to the measuremen ...
Emergency flashers
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
Emergency flashers
If the emergency flashers are used f ...
No Signal from Transmitter ID1
DESCRIPTION
The tire pressure warning valve and transmitters that are installed in the
tire and wheel assemblies
measure the air pressure of the tires. The measured values are transmitted to
the tire pressure warning
antenna and receiver on the body as radio waves and then sent to the tir ...
