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:
DTC SUMMARY Refer to the DTC summary for DTC P1C7779.
Click here DESCRIPTION
Refer to the description for DTC P1C7779. Click here
DTC No. Detection Item
DTC Detection Condition
Trouble Area MIL
Warning Indicate Note
P1C8779 Generator Mechanical
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 RADIATOR DRAIN COCK PLUG
16400B
- -
2 RADIATOR SUPPORT LOWER
16535 -
- -
3 RADIATOR SUPPORT CUSHION
16523A