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:
DESCRIPTION The No. 1 power back door control switch signal is sent to the multiplex network door ECU.
If the power back door does not operate using the No. 1 power back door control switch, a No. 1 power back door control switch circuit malfunction is a possible cause. WIRING DIAGRAM
CAUTION / N
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 PRECAUTION
-
- -
2 DISCHARGE FUEL SYSTEM PRESSURE
-
- -
3 DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL