Toyota Corolla Cross: Power Distribution
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REMOVAL
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COMPONENTS (REMOVAL)
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PRECAUTION
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INSTALLATION
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COMPONENTS (INSTALLATION)
Procedure
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1
MAIN BODY ECU (MULTIPLEX NETW
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INSTALLATION CAUTION / NOTICE / HINT
NOTICE: This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
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Procedure Part Name Code
MONITOR DESCRIPTION The fuel pump control ECU has a self-diagnosis function. If there is an internal malfunction, the fuel pump control ECU sends a malfunction signal to the ECM via the FPC drive circuit.
Based on the signal, the ECM judges that there is a malfunction in the fuel pump control ECU