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
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PRECAUTION
WHEN DISCONNECTING AUXILIARY BATTERY CABLE
NOTICE:
After turning the ignition switch off, waiting time may be required
before disconnecting the cable from the negative (-) auxiliary battery terminal.
Click here
HINT:
When disconnecting and reconnecting the auxiliary battery, t
TERMINALS OF ECU
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
HINT:
Check from the rear of the connector while it is connected to the air conditioning amplifier assembly.
Make sure to wait at least 2 minutes after turning the ignition switch off before performing an ECU terminal inspectio