Toyota Yaris: Heated Steering Wheel System / How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the heated steering wheel system.
PROCEDURE
1. | VEHICLE BROUGHT TO WORKSHOP |
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2. | INSPECT AUXILIARY BATTERY |
(a) Measure the auxiliary battery voltage with the ignition switch off.
Standard voltage:
11 to 14 V (Ignition switch off)
If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.
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3. | PROBLEM SYMPTOMS TABLE |
HINT:
Refer to Problem Symptoms Table.
Click here
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SYSTEM DESCRIPTION HEATED STEERING WHEEL SYSTEM (a) The steering heater warms up the steering wheel when the steering heater switch is turned on. (b) The steering heater uses a control thermostat inside the steering wheel to maintain the steering wheel at the specified temperature...
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table...
Other information:
To remove the head restraint, pull it up while pressing the stop-catch.
To install the head restraint, insert the legs into the holes while pressing the
stop-catch.
WARNING
Always drive with the head restraints installed when seats are being
used and make sure they are properly installed
Driving with the head restraints not installed is dangerous...
DESCRIPTION The main body ECU (multiplex network body ECU) receives door key cylinder lock or unlock switch signals from the front door lock with motor assembly LH. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals...
Categories
Before refueling, close all the doors, windows, and the liftgate/trunk
lid, and switch the ignition OFF.
To open the fuel-filler lid, pull
the remote fuel-filler lid release.

To remove the fuel-filler cap, turn it counterclockwise.
Attach the removed cap to the
inner side of the fuel-filler lid.
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