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:
MONITOR DESCRIPTION The ECM monitors the signals received from the No. 1 throttle position sensor. As the ECM monitors the VTA1 signal of the No. 1 throttle position sensor, if these signals do not correlate, a DTC will be stored.
DTC No. Detection Item
DTC Detection Condition Trouble
DESCRIPTION Refer to DTC P008700. Click here
DTC No. Detection Item
DTC Detection Condition Trouble Area
MIL Note
P008800 Fuel Rail / System Pressure - Too High
Although the ECM is requesting the fuel pump assembly (for high pressure side) to open the spill