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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MONITOR DESCRIPTION The ECM continuously monitors its main CPU and monitor IC. This self-check ensures that the ECM is functioning properly. If outputs from main CPU and monitor IC are different and deviate from the standard, the ECM will illuminate the MIL and store this DTC.
DTC No. Detect
MONITOR DESCRIPTION The auxiliary battery supplies electricity to the ECM even when the ignition switch is off. This power allows the ECM to store data such as DTC history, Freeze Frame Data and fuel trim values. If the auxiliary battery voltage falls below a minimum level, the memory is cleared and