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:
INSPECTION PROCEDURE 1. INSPECT PORT FUEL INJECTOR ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection Condition
Specified Condition 1 - 2
20°C (68°F) 11.6 to 12.4
DESCRIPTION
The alternator performs self-diagnosis of its internal circuits to detect malfunctions
(open or short circuits).
The ECM receives the result via LIN communication and stores a DTC.
DTC No.
Detection Item
DTC Detection Condition
Trouble Are