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 EGR COOLER ASSEMBLY
25680 -
- -
2 NO. 1 EGR PIPE SUB-ASSEMBLY
25601
- -
3 EGR VALVE ADAPTER GASKET
25629 -
-
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 INLET NO. 1 AIR CLEANER
17751 -
- -
2 AIR CLEANER CAP WITH AIR CLEANER HOSE
- -
- -
3 THROTTLE BODY WITH MOTOR ASSEMBLY
220