Power Back Door does not Operate Using Cabin Switch [11/2024 - ]: Procedure

1. Operate the multi-information display and check the customization status.

   Display	Description	Default	Setting	Relevant ECU
   System Settings	Function that enables or disables the power back door operation.	On	On or Off	Multiplex network door ECU

   Result

   Result	Proceed to
   Customization item is "On" (power back door system operation is possible)	A
   Customization item is "Off" (power back door system operation is prohibited)	B

Result: 

B 

PERFORM CUSTOMIZE SETTING 

Refer to CUSTOMIZE PARAMETERS [11/2024 - ]

Result: 

A 

See step  2

1. Check the power back door system.

   Result

   Result	Proceed to
   Power back door system does not operate normally	A
   Power back door system operates normally	B

Result: 

B 

GO TO POWER BACK DOOR CANNOT BE OPERATED FREQUENTLY 

Refer to Power Back Door cannot be Operated Frequently [10/2023 - ] 

Result: 

A 

See step  3

1. Read the Data List according to the display on the GTS.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Back Door Operation Switch (Instrument)	Power back door control switch signal	ON or OFF	ON: Power back door control switch on OFF: Power back door control switch off	-

   Body Electrical > Main Body > Data List 

   Tester Display
   Back Door Operation Switch (Instrument)

   OK

   The GTS display changes correctly in response to the switch operation.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU 

Refer to REMOVAL [10/2023 - ]

Result: 

NG 

See step  4

Refer to INSPECTION [11/2018 - ]

Result

Result: 

NG 

REPLACE POWER BACK DOOR CONTROL SWITCH 

Refer to REMOVAL [11/2018 - ]

Result: 

OK 

See step  5

1. Disconnect the G11 power back door control switch connector.
2. Disconnect the G45 main body ECU (multiplex network body ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G11-5 (MSW) - G45-4 (PBDS)	Always	Below 1 Ω
   G11-2 (MSE) - Body ground	Always	Below 1 Ω
   G11-5 (MSW) or G45-4 (PBDS) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [10/2023 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR