Toyota Corolla Cross: Power Back Door does not Operate Using Cabin Switch

DESCRIPTION

The power back door control switch signal is sent to the multiplex network door ECU.

If the power back door does not operate using the power back door control switch, a power back door control switch circuit malfunction is a possible cause.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

• First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.

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• If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.

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• If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.

  for HEV Model: Click here

  for Gasoline Model: Click here

PROCEDURE

(a) Check that the power back door function on the multi-information display in the combination meter assembly is set to ON.

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B

SET POWER BACK DOOR FUNCTION TO ON (PERMIT POWER BACK DOOR SYSTEM OPERATION)

A

(a) Check the power back door system condition.

B

GO TO POWER BACK DOOR CANNOT BE OPERATED FREQUENTLY

A

(a) Read the Data List according to the display on the GTS.

OK:

The power back door control switch functions as specified in the normal condition column.

OK

REPLACE MULTIPLEX NETWORK DOOR ECU

NG

Click here

NG

REPLACE POWER BACK DOOR CONTROL SWITCH

OK

(a) Disconnect the I205 power back door control switch connector.

(b) Disconnect the I86 main body ECU (multiplex network body ECU) connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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