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:
INSTALLATION CAUTION / NOTICE / HINT
Procedure Part Name Code
1 LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY
73900
- -
2 LOWER CENTER INSTRUMENT PANEL FINISH PANEL
55434F -
- -
3 LOWER NO. 1 INSTRUMENT
FAIL-SAFE CHART
FAIL-SAFE FUNCTION
(a) When a malfunction occurs in the tire pressure warning system, the tire pressure
warning light illuminates after blinking for 1 minute to inform the driver of the
system failure.
(b) As a result of this, tire pressure monitoring is disabled and a DTC is