Toyota Corolla (E120): Source voltage drop

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Indicators
The indicators inform the driver of the operating state of the vehicle’s various systems. *1: Vehicles without a smart key system: These lights turn on when the engine switch is turned to the “ON” position to indicate that a system check is being performed. They will turn off after the ...

Problem symptoms table
Hint: if a normal code is displayed during the dtc check but the trouble still occurs, check the circuits for each symptom in the order given in the charts on the following pages and proceed to the page given for troubleshooting. The matrix chart is divided into 3 chapters. If the instruc ...

Ecm (1zz–fe)
Replacement 1. Disconnect battery negative terminal 2. Remove glove compartment door assy 3. Remove ecm Remove the 2 clips using a clip remover. Then, open the cover. Disconnect the 4 ecm connectors.  remove the wire harness from the wire harness clamp. Remove the 2 ...