Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM

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ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT
CAUTION:
When working near the engine room while the engine has started or the power source mode is ignition switch to ON, do not touch the fan and
InspectionINSPECTION PROCEDURE
1. INSPECT FUEL TANK CAP ASSEMBLY
(a) Visually check that the fuel tank cap assembly and gasket are not deformed or damaged.
If the fuel tank cap assembly or
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE
1. INSPECT PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY)
(a) Check the PCV valve (ventilation valve sub-assembly) operation.
(1) Start the
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DESCRIPTION
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
U011187
Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing
Message
Communication stops be
UPDATE ECU SECURITY KEY
NOTICE:
It is necessary to log in to the Toyota server to perform an ECU security
key update.
Users other than Toyota dealers can log in with a guest account issued when
an ECU is ordered.
UPDATE ECU SECURITY KEY
(a) Enter the following menus: System Select