Jam Protection Function Activates During Power Back Door Operation [10/2023 - ]: Procedure

1. Check if there are any foreign objects interfering with back door operation.

   Result

   Result	Proceed to
   There are no foreign objects	A
   There are foreign objects	B

Result: 

B 

REMOVE FOREIGN OBJECT 

Result: 

A 

See step  2

1. Set the power back door system main switch to "Off"
   1. Operate the multi-information display and disable the function.

      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

   2. Check that the back door operates smoothly without catching (does not feel heavy) when manually opened and closed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  10

Result: 

OK 

See step  3

1. Check the Data List to determine if the power back door sensor assembly functions properly.

   Body Electrical > Back Door > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   PBD Touch Sensor RH	Power back door sensor assembly RH signal	ON, OFF or Open	ON: Power back door sensor assembly RH pressed OFF: Power back door sensor assembly RH not pressed Open: Power back door sensor assembly RH circuit open	-
   PBD Touch Sensor LH	Power back door sensor assembly LH signal	ON, OFF or Open	ON: Power back door sensor assembly LH pressed OFF: Power back door sensor assembly LH not pressed Open: Power back door sensor assembly LH circuit open	-

   Body Electrical > Back Door > Data List 

   Tester Display
   PBD Touch Sensor RH
   PBD Touch Sensor LH

   Result

   Result	Proceed to
   On the GTS screen, ON or OFF is displayed accordingly	A
   On the GTS screen, ON or OFF is not displayed accordingly or Open is displayed for power back door sensor assembly RH	B
   On the GTS screen, ON or OFF is not displayed accordingly or Open is displayed for power back door sensor assembly LH	C

Result: 

B 

See step  6

Result: 

C 

See step  8

Result: 

A 

See step  4

1. Using an oscilloscope, check the waveform of each terminal from the rear of the multiplex network door ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Multiplex Network Door ECU)	*b	Waveform (CH1)
   *c	Waveform (CH2)	-	-

   Measurement Condition

   Item	Condition
   Tester Connection	CH1: R27-13 (DS1) - Body ground CH2: R27-5 (DS2) - Body ground
   Tool Setting	2 V/DIV., 2 ms./DIV.
   Vehicle Condition	Open and close the back door by hand.

   HINT: 

   • The period changes in accordance to the speed at which the back door is opened and closed by hand.
   • The wave height changes in accordance with the auxiliary battery voltage.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE POWER BACK DOOR UNIT ASSEMBLY SET LH. Refer to  REMOVAL [10/2023 - ] 

Result: 

OK 

See step  5

1. Using an oscilloscope, check the waveform of each terminal from the rear of the multiplex network door ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Multiplex Network Door ECU)	*b	Waveform (CH1)
   *c	Waveform (CH2)	-	-

   Measurement Condition

   Item	Condition
   Tester Connection	CH1: R27-6 (DS12) - Body ground CH2: R27-12 (DS22) - Body ground
   Tool Setting	2 V/DIV., 2 ms./DIV.
   Vehicle Condition	Open and close the back door by hand.

   HINT: 

   • The period changes in accordance to the speed at which the back door is opened and closed by hand.
   • The wave height changes in accordance with the auxiliary battery voltage.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [10/2023 - ] 

Result: 

NG 

REPLACE POWER BACK DOOR UNIT ASSEMBLY SET RH. Refer to  REMOVAL [10/2023 - ] 

Refer to INSPECTION [11/2018 - ]

Result

Result: 

NG 

REPLACE POWER BACK DOOR SENSOR ASSEMBLY RH. Refer to  REMOVAL [11/2018 - ] 

Result: 

OK 

See step  7

1. Disconnect the R8 power back door sensor assembly RH connector.
2. Disconnect the R27 multiplex network door ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   R8-1 (OSR) - R27-8 (OSR)	Always	Below 1 Ω
   R8-2 (OSRE) - R27-9 (OSE)	Always	Below 1 Ω
   R8-1 (OSR) or R27-8 (OSR) - Body ground	Always	10 kΩ or higher
   R8-2 (OSRE) or R27-9 (OSE) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [10/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Refer to INSPECTION [11/2018 - ]

Result

Result: 

NG 

REPLACE POWER BACK DOOR SENSOR ASSEMBLY LH. Refer to  REMOVAL [11/2018 - ] 

Result: 

OK 

See step  9

1. Disconnect the R9 power back door sensor assembly LH connector.
2. Disconnect the R27 multiplex network door ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   R9-1 (OSL) - R27-1 (OSL)	Always	Below 1 Ω
   R9-2 (OSLE) - R27-9 (OSE)	Always	Below 1 Ω
   R9-1 (OSL) or R27-1 (OSL) - Body ground	Always	10 kΩ or higher
   R9-2 (OSLE) or R27-9 (OSE) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [10/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Visually check the power back door unit assembly set LH/RH to check that there is no obvious damage, bends or fluid leaks.

   OK

   There is no obvious damage, bends or fluid leaks on the power back door unit assembly set LH/RH.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

ADJUST BACK DOOR 

Result: 

NG 

REPLACE POWER BACK DOOR UNIT ASSEMBLY SET LH/RH. Refer to  REMOVAL [10/2023 - ]