RM36D0EC _59 Vehicle Exterior _083093 DOOR / HATCH _0584672 POWER BACK DOOR SYSTEM J

DOOR / HATCH  POWER BACK DOOR SYSTEM  Jam Protection Function Activates During Power Back Door Operation  


DESCRIPTION

The power back door is controlled by the multiplex network door ECU and the back door motor is driven. During motor operation, the power back door (touch sensor) used for jam protection checks for obstruction by foreign objects, etc. by detecting changes in resistance due to contact.

Furthermore, the speed of the back door is monitored using the pulse sensor (power back door unit assembly) and if a change in speed is detected, it is judged that there is an obstruction by a foreign object and the door direction is reversed.

WIRING DIAGRAM

E442433E26
5.073,0.417 5.531,0.615 0.458,0.198 10 false R31 6.073,0.417 6.531,0.615 0.458,0.198 10 false DS1 6.063,0.865 6.521,1.063 0.458,0.198 10 false DS2 6.073,1.323 6.531,1.521 0.458,0.198 10 false DSV 5.073,0.885 5.531,1.083 0.458,0.198 10 false R31 5.073,1.333 5.531,1.531 0.458,0.198 10 false R31 5.073,1.802 5.531,2 0.458,0.198 10 false R29 5.063,2.26 5.521,2.458 0.458,0.198 10 false R29 5.073,2.719 5.531,2.917 0.458,0.198 10 false R31 6.073,1.792 6.531,1.99 0.458,0.198 10 false BD+ 6.073,2.25 6.531,2.448 0.458,0.198 10 false BD- 6.073,2.698 6.531,2.896 0.458,0.198 10 false DSG 5.688,3 6.146,3.198 0.458,0.198 10 false R21 4.677,0.313 5.135,0.51 0.458,0.198 10 false DS1 4.677,0.771 5.135,0.969 0.458,0.198 10 false DS2 4.667,1.24 5.125,1.438 0.458,0.198 10 false DSV 4.688,1.698 5.146,1.896 0.458,0.198 10 false BD+ 4.688,2.156 5.146,2.354 0.458,0.198 10 false BD- 4.656,2.615 5.115,2.813 0.458,0.198 10 false DSG 3.573,3.385 4.031,3.583 0.458,0.198 10 false CPU 5.844,0.292 6,0.49 0.156,0.198 10 false 5 5.844,0.76 6,0.958 0.156,0.198 10 false 6 5.854,1.229 6.01,1.427 0.156,0.198 10 false 3 5.854,1.677 6.01,1.875 0.156,0.198 10 false 1 5.844,2.146 6,2.344 0.156,0.198 10 false 2 5.854,2.604 6.01,2.802 0.156,0.198 10 false 4 2.594,1.563 2.906,1.76 0.313,0.198 10 false 1 5.167,1.135 5.479,1.333 0.313,0.198 10 false 4 5.104,2.5 5.417,2.698 0.313,0.198 10 false 11 5.104,0.188 5.406,0.385 0.302,0.198 10 false 13 5.156,0.667 5.313,0.865 0.156,0.198 10 false 5 5.146,2.031 5.302,2.229 0.156,0.198 10 false 3 5.156,1.583 5.313,1.781 0.156,0.198 10 false 1 5.698,3.188 7.073,3.573 1.375,0.385 10 false Power Back Door Unit Assembly Set LH 2.51,1.771 2.969,1.969 0.458,0.198 10 false R31 2.51,3.469 2.969,3.667 0.458,0.198 10 false R31 2.5,5.083 2.958,5.281 0.458,0.198 10 false R31 2.594,4.865 2.906,5.063 0.313,0.198 10 false 9 2.583,3.26 2.74,3.458 0.156,0.198 10 false 8 2.854,1.677 3.313,1.875 0.458,0.198 10 false OSL 1.677,1.656 2.135,1.854 0.458,0.198 10 false OSL 0.74,1.646 1.198,1.844 0.458,0.198 10 false OSLE 0.74,3.354 1.198,3.552 0.458,0.198 10 false OSRE 1.688,3.354 2.146,3.552 0.458,0.198 10 false OSR 2.865,3.375 3.323,3.573 0.458,0.198 10 false OSR 2.865,4.99 3.323,5.188 0.458,0.198 10 false OSE 2.094,1.656 2.25,1.854 0.156,0.198 10 false 1 2.094,3.365 2.25,3.563 0.156,0.198 10 false 1 0.51,1.646 0.667,1.844 0.156,0.198 10 false 2 0.521,3.354 0.677,3.552 0.156,0.198 10 false 2 0.271,2.448 2.708,2.667 2.438,0.219 10 false Power Back Door Sensor Assembly LH 0.281,2.25 0.74,2.448 0.458,0.198 10 false R9 5.063,4.083 5.521,4.281 0.458,0.198 10 false R31 5.073,4.542 5.531,4.74 0.458,0.198 10 false R31 5.063,5 5.521,5.198 0.458,0.198 10 false R30 5.073,6.385 5.531,6.583 0.458,0.198 10 false R31 5.073,5.469 5.531,5.667 0.458,0.198 10 false R29 5.063,5.927 5.521,6.125 0.458,0.198 10 false R29 0.229,3.979 0.688,4.177 0.458,0.198 10 false R8 6.073,4.094 6.531,4.292 0.458,0.198 10 false DS12 6.083,4.531 6.542,4.729 0.458,0.198 10 false DS22 6.083,4.99 6.542,5.188 0.458,0.198 10 false DSV2 6.063,5.438 6.521,5.635 0.458,0.198 10 false BD+2 6.073,5.927 6.531,6.125 0.458,0.198 10 false BD-2 6.063,6.385 6.521,6.583 0.458,0.198 10 false DSG2 5.719,6.688 6.177,6.885 0.458,0.198 10 false R20 5.729,6.906 7.115,7.281 1.385,0.375 10 false Power Back Door Unit Assembly Set RH 4.615,3.958 5.073,4.156 0.458,0.198 10 false DS12 4.615,4.427 5.073,4.625 0.458,0.198 10 false DS22 4.594,4.906 5.052,5.104 0.458,0.198 10 false DSV2 4.594,5.344 5.052,5.542 0.458,0.198 10 false BD+2 4.646,5.823 5.104,6.021 0.458,0.198 10 false BD-2 4.583,6.281 5.042,6.479 0.458,0.198 10 false DSG2 5.844,6.292 6,6.49 0.156,0.198 10 false 4 5.833,5.813 5.99,6.01 0.156,0.198 10 false 2 5.833,5.344 5.99,5.542 0.156,0.198 10 false 1 5.844,4.885 6,5.083 0.156,0.198 10 false 3 5.844,4.438 6,4.635 0.156,0.198 10 false 6 5.844,3.979 6,4.177 0.156,0.198 10 false 5 3.021,6.958 4.813,7.208 1.792,0.25 10 false Multiplex Network Door ECU 5.156,3.875 5.313,4.073 0.156,0.198 10 false 6 5.104,4.333 5.458,4.542 0.354,0.208 10 false 12 5.146,4.792 5.302,4.99 0.156,0.198 10 false 3 5.156,5.26 5.313,5.458 0.156,0.198 10 false 6 5.156,5.719 5.313,5.917 0.156,0.198 10 false 8 5.104,6.156 5.417,6.354 0.313,0.198 10 false 10 0.229,4.156 2.74,4.396 2.51,0.24 10 false Power Back Door Sensor Assembly RH 4.219,1.01 4.531,1.208 0.313,0.198 10 false +B 4.229,4.698 4.542,4.896 0.313,0.198 10 false +B

CAUTION / NOTICE / HINT

NOTICE:

If the multiplex network door ECU has been replaced, or if any of the connectors has been disconnected, initialize the power back door system.

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR SYSTEM>INITIALIZATION


PROCEDURE

1.CHECK POWER BACK DOOR SYSTEM
a.

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



A

2.CHECK BACK DOOR OPERATION

B

REMOVE FOREIGN OBJECT

2.CHECK BACK DOOR OPERATION
a.

Set the power back door system main switch to "Off"

i.

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


ii.

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



Result:
Proceed to
OK
NG



OK

3.READ VALUE USING GTS

NG

10.VISUALLY CHECK POWER BACK DOOR UNIT ASSEMBLY SET LH/RH
3.READ VALUE USING GTS
a.

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
50003 489 1057,1058

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



A

4.CHECK POWER BACK DOOR UNIT ASSEMBLY SET LH

B

6.INSPECT POWER BACK DOOR SENSOR ASSEMBLY RH

C

8.INSPECT POWER BACK DOOR SENSOR ASSEMBLY LH
4.CHECK POWER BACK DOOR UNIT ASSEMBLY SET LH
a.

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

E510878C01
0.75,0.719 1.25,0.969 0.5,0.25 0.906,1.708 1.208,2.302 true 0.729,1.823 0.49,2.281 true 4.271,2.052 4.729,2.25 0.458,0.198 10 false GND 6.813,2.052 7.156,2.302 0.344,0.25 10 false GND 0.083,0.073 0.542,0.271 0.458,0.198 10 false *a 0.875,0.75 1.333,0.948 0.458,0.198 10 false R31 1.188,2.302 1.646,2.5 0.458,0.198 10 false DS2 0.24,2.292 0.698,2.49 0.458,0.198 10 false DS1 2.115,0.563 2.573,0.76 0.458,0.198 10 false *b 4.688,0.542 5.146,0.74 0.458,0.198 10 false *c
*a Component with harness connected
(Multiplex Network Door ECU) 		*b Waveform (CH1)
*c Waveform (CH2) - -


Measurement Condition:
Item Condition
Tester Connection
·

CH1: R31-13 (DS1) - Body ground

·

CH2: R31-5 (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



OK

5.CHECK POWER BACK DOOR UNIT ASSEMBLY SET RH

NG

REPLACE POWER BACK DOOR UNIT ASSEMBLY SET LH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR DRIVE UNIT>REMOVAL


5.CHECK POWER BACK DOOR UNIT ASSEMBLY SET RH
a.

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

E510878C02
0.75,0.719 1.25,0.969 0.5,0.25 0.885,1.833 1.208,2.302 true 0.729,1.708 0.49,2.281 true 4.271,2.052 4.729,2.25 0.458,0.198 10 false GND 6.813,2.052 7.156,2.302 0.344,0.25 10 false GND 0.083,0.073 0.542,0.271 0.458,0.198 10 false *a 0.865,0.76 1.323,0.958 0.458,0.198 10 false R31 1.188,2.302 1.646,2.5 0.458,0.198 10 false DS22 0.24,2.292 0.698,2.49 0.458,0.198 10 false DS12 2.115,0.563 2.573,0.76 0.458,0.198 10 false *b 4.688,0.542 5.146,0.74 0.458,0.198 10 false *c
*a Component with harness connected
(Multiplex Network Door ECU) 		*b Waveform (CH1)
*c Waveform (CH2) - -


Measurement Condition:
Item Condition
Tester Connection
·

CH1: R31-6 (DS12) - Body ground

·

CH2: R31-12 (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



OK

REPLACE MULTIPLEX NETWORK DOOR ECU

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR CLOSER ECU>REMOVAL


NG

REPLACE POWER BACK DOOR UNIT ASSEMBLY SET RH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR DRIVE UNIT>REMOVAL


6.INSPECT POWER BACK DOOR SENSOR ASSEMBLY RH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR TOUCH SENSOR>INSPECTION

Result:
Proceed to
OK
NG



OK

7.CHECK HARNESS AND CONNECTOR (POWER BACK DOOR SENSOR ASSEMBLY RH - MULTIPLEX NETWORK DOOR ECU)

NG

REPLACE POWER BACK DOOR SENSOR ASSEMBLY RH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR TOUCH SENSOR>REMOVAL


7.CHECK HARNESS AND CONNECTOR (POWER BACK DOOR SENSOR ASSEMBLY RH - MULTIPLEX NETWORK DOOR ECU)
a.

Disconnect the R8 power back door sensor assembly RH connector.


b.

Disconnect the R31 multiplex network door ECU connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
R8-1 (OSR) - R31-8 (OSR) Always Below 1 Ω
R8-2 (OSRE) - R31-9 (OSE) Always Below 1 Ω
R8-1 (OSR) or R31-8 (OSR) - Body ground Always 10 kΩ or higher
R8-2 (OSRE) or R31-9 (OSE) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE MULTIPLEX NETWORK DOOR ECU

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR CLOSER ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.INSPECT POWER BACK DOOR SENSOR ASSEMBLY LH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR TOUCH SENSOR>INSPECTION

Result:
Proceed to
OK
NG



OK

9.CHECK HARNESS AND CONNECTOR (POWER BACK DOOR SENSOR ASSEMBLY LH - MULTIPLEX NETWORK DOOR ECU)

NG

REPLACE POWER BACK DOOR SENSOR ASSEMBLY LH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR TOUCH SENSOR>REMOVAL


9.CHECK HARNESS AND CONNECTOR (POWER BACK DOOR SENSOR ASSEMBLY LH - MULTIPLEX NETWORK DOOR ECU)
a.

Disconnect the R9 power back door sensor assembly LH connector.


b.

Disconnect the R31 multiplex network door ECU connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
R9-1 (OSL) - R31-1 (OSL) Always Below 1 Ω
R9-2 (OSLE) - R31-9 (OSE) Always Below 1 Ω
R9-1 (OSL) or R31-1 (OSL) - Body ground Always 10 kΩ or higher
R9-2 (OSLE) or R31-9 (OSE) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE MULTIPLEX NETWORK DOOR ECU

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR CLOSER ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.VISUALLY CHECK POWER BACK DOOR UNIT ASSEMBLY SET LH/RH
a.

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



OK

ADJUST BACK DOOR

NG

REPLACE POWER BACK DOOR UNIT ASSEMBLY SET LH/RH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR DRIVE UNIT>REMOVAL