Toyota Yaris: Heated Steering Wheel System / How To Proceed With Troubleshooting

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Steering / Steering Column / 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

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.

3.	PROBLEM SYMPTOMS TABLE

HINT:

Refer to Problem Symptoms Table.

Click here

4.	REPAIR OR REPLACE

5.	CONFIRMATION TEST

END

System Description

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

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:

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Terminals Of Ecu

TERMINALS OF ECU *1 Power Distribution Box Assembly *2 Main Body ECU (Multiplex Network Body ECU) CHECK POWER DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly...

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Operation Check

OPERATION CHECK CHECK CUSTOMIZE PARAMETERS NOTICE: The operation check below is based on the non-customized initial condition of the vehicle. Click here HINT: The switches described in this text are the switches for transmitting signals. The switches are built into the electrical key transmitter sub-assembly...