Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Power Back Door System

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 Parts Location

PARTS LOCATION ILLUSTRATION *1 POWER BACK DOOR UNIT ASSEMBLY SET LH *2 MULTIPLEX NETWORK DOOR ECU *3 POWER BACK DOOR WARNING BUZZER *4 POWER BACK DOOR UNIT ASSEMBLY SET

 System Diagram

SYSTEM DIAGRAM

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: The power back door system troubleshooting procedure is based on the premise that the smart key system (for Entry Function) is operating normally. Check the power back

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 Rear Motor High-voltage Circuit

DESCRIPTION The cause of the malfunction may be the high-voltage circuit of the rear motor. Check the rear motor internal resistance and the connection condition of the high-voltage line between the inverter and rear motor to check whether there is an open or short circuit. Related Parts Check

 Hybrid/EV Battery Discharge Control Malfunction (P300000)

DESCRIPTION The battery ECU assembly alerts the driver and performs fail-safe control based on malfunction signals. If the SOC drops due to running out of fuel, the vehicle being left with the shift lever in N for a long time or a hybrid control system malfunction, this DTC will be stored. DT

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