Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM
SYSTEM DIAGRAM

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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
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the heated steering wheel system.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
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
SEE MORE:
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 BLOWER ASSEMBLY
87130D -
- -
2 AIR CONDITIONING HARNESS ASSEMBLY
82210K -
- -
3 NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-
DESCRIPTION The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the ECM, shift control ECU, MG ECU, skid control ECU, main body ECU, airbag sensor assembly, steering angle sensor, certification ECU (smart key ECU assembly) and air conditioning amplifier as