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:
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 REAR DOOR LOCK AND UNLOCK KNOB INSIDE LOCKING CABLE
69780E -
- -
2 OPEN LEVER REAR DOOR LOCK REMOTE CONTROL CABLE
69740E -
- -
DESCRIPTION
The transmission revolution sensor (NSS) detects the secondary pulley speed and
sends it to the TCM.
The TCM determines the current gear ratio from the transmission revolution sensor
(NSS) signal.
DTC No.
Detection Item
DTC Detection Condition