RM38N0EC _59 Vehicle Exterior _111831 DOOR / HATCH _0505274 POWER BACK DOOR SYSTEM J

DOOR / HATCH  POWER BACK DOOR SYSTEM  Back Door Closer does not Operate  


DESCRIPTION

If the back door closer does not operate, one of the following may be the cause: 1) improper fit of the back door or a foreign object stuck in the back door, 2) a malfunction in the multiplex network door ECU power source circuit, 3) a malfunction in the back door lock with courtesy light switch assembly circuit, 4) initialization of the multiplex network door ECU has not been performed or 5) a multiplex network door ECU malfunction.

WIRING DIAGRAM

B588266
5.688,0.49 6.146,0.688 0.458,0.198 10 false T12 3.771,0.656 5.458,0.854 1.688,0.198 10 false ECU-IGR NO. 2 3.854,1.115 5.542,1.313 1.688,0.198 10 false ECU-B NO. 2 4.104,1.615 5.167,2.042 1.063,0.427 10 false PBD 0.969,0.948 2.802,1.146 1.833,0.198 10 false from Auxiliary Battery 2.667,2.094 2.979,2.292 0.313,0.198 10 false M+ 2.688,2.698 3,2.896 0.313,0.198 10 false M- 2.604,3.281 3.063,3.479 0.458,0.198 10 false CLS 2.573,3.896 3.031,4.094 0.458,0.198 10 false OPN 2.552,4.479 3.01,4.677 0.458,0.198 10 false FSW 2.604,5.083 3.063,5.281 0.458,0.198 10 false CTY 2.771,5.677 2.927,5.875 0.156,0.198 10 false E 0.969,2.427 2.573,2.625 1.604,0.198 10 false Back Door Lock Motor 1.271,3.552 3.104,3.75 1.833,0.198 10 false Latch Switch 1.208,4.146 3.042,4.344 1.833,0.198 10 false Position Switch 1.281,4.76 3.115,4.958 1.833,0.198 10 false Pawl Switch 0.833,5.333 3.896,5.531 3.063,0.198 10 false Back Door Courtesy Switch 0.208,6.208 3.698,6.74 3.49,0.531 10 false Back Door Lock with Courtesy Light Switch Assembly 5.844,6.573 6.948,6.938 1.104,0.365 10 false Multiplex Network Door ECU 3.094,1.99 3.25,2.188 0.156,0.198 10 false 2 3.073,2.583 3.229,2.781 0.156,0.198 10 false 1 3.083,3.177 3.24,3.375 0.156,0.198 10 false 3 3.083,3.771 3.24,3.969 0.156,0.198 10 false 6 3.083,4.385 3.24,4.583 0.156,0.198 10 false 2 3.083,4.969 3.24,5.167 0.156,0.198 10 false 4 3.083,5.573 3.24,5.771 0.156,0.198 10 false 1 6.083,1.448 6.396,1.646 0.313,0.198 10 false B 6.083,0.979 6.667,1.177 0.583,0.198 10 false ECUB 6.083,0.51 6.396,0.708 0.313,0.198 10 false IG 6.083,2.208 6.542,2.406 0.458,0.198 10 false DC+ 6.073,2.802 6.531,3 0.458,0.198 10 false DC- 6.073,3.406 6.531,3.604 0.458,0.198 10 false HAF 6.083,4 6.542,4.198 0.458,0.198 10 false POS 6.083,5.198 6.542,5.396 0.458,0.198 10 false FUL 6.073,5.792 6.531,5.99 0.458,0.198 10 false GND 5.74,0.271 6.052,0.469 0.313,0.198 10 false 18 5.729,0.75 6.042,0.948 0.313,0.198 10 false 20 5.76,1.219 6.042,1.438 0.281,0.219 10 false 1 5.76,1.979 5.917,2.177 0.156,0.198 10 false 4 5.76,2.573 5.917,2.771 0.156,0.198 10 false 3 5.76,3.177 5.917,3.375 0.156,0.198 10 false 9 5.76,3.76 5.917,3.958 0.156,0.198 10 false 7 5.708,4.365 6.021,4.563 0.313,0.198 10 false 13 5.719,4.969 6.031,5.167 0.313,0.198 10 false 11 5.708,5.563 6.021,5.76 0.313,0.198 10 false 10 6.083,4.604 6.542,4.802 0.458,0.198 10 false PAWL 0.927,0.458 2.76,0.656 1.833,0.198 10 false from IGR NO. 2 Relay 3.042,2.198 3.5,2.396 0.458,0.198 10 false T8 1.802,7.146 2.417,7.344 0.615,0.198 10 false BCTY 2.323,7.5 2.635,7.698 0.313,0.198 10 false 4E 2.333,7.667 3.771,8.365 1.438,0.698 10 false Power Distribution Box Assembly 0.333,7.635 0.646,7.833 0.313,0.198 10 false MB 0.333,7.813 1.979,8.396 1.646,0.583 10 false Main Body ECU (Multiplex Network Body ECU) 2.302,7.052 2.615,7.25 0.313,0.198 10 false 19 3,7.052 3.313,7.25 0.313,0.198 10 false 2 5.688,0.969 6.146,1.167 0.458,0.198 10 false T12 5.688,1.448 6.146,1.646 0.458,0.198 10 false T13 5.688,2.198 6.146,2.396 0.458,0.198 10 false T13 5.688,2.792 6.146,2.99 0.458,0.198 10 false T13 5.688,3.396 6.146,3.594 0.458,0.198 10 false T12 5.688,3.99 6.146,4.188 0.458,0.198 10 false T12 5.688,4.594 6.146,4.792 0.458,0.198 10 false T12 5.688,5.188 6.146,5.385 0.458,0.198 10 false T12 5.688,5.781 6.146,5.979 0.458,0.198 10 false T13 3.042,2.802 3.5,3 0.458,0.198 10 false T8 3.042,3.396 3.5,3.594 0.458,0.198 10 false T9 3.042,3.99 3.5,4.188 0.458,0.198 10 false T9 3.042,4.594 3.5,4.792 0.458,0.198 10 false T9 3.042,5.188 3.5,5.385 0.458,0.198 10 false T9 3.042,5.781 3.5,5.979 0.458,0.198 10 false T9

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

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

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



PROCEDURE

1.CHECK FOR DTC
a.

Check for DTCs.

Body Electrical > Back Door > Trouble Codes
50001 489

Result:
Result Proceed to
DTC is not output A
DTC B225001 is output B
DTC B225101 is output C



A

2.CHECK BACK DOOR LOCK FUNCTION

B

GO TO DTC B225001

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR SYSTEM>B225001


C

GO TO DTC B225101

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR SYSTEM>B225101


2.CHECK BACK DOOR LOCK FUNCTION
a.

Check if the back door can be fully closed by hand.


Result:
Result Proceed to
The back door can be closed normally A
The back door cannot be closed normally B



A

3.INITIALIZE POWER BACK DOOR SYSTEM

B

IMPROPER FIT OF BACK DOOR, OR A FOREIGN OBJECT IS STUCK IN BACK DOOR

3.INITIALIZE POWER BACK DOOR SYSTEM
a.

Initialize the power back door system.

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


Result:
Proceed to
NEXT



NEXT

4.CHECK BACK DOOR CLOSER
4.CHECK BACK DOOR CLOSER
a.

When the back door is partially closed, check that the motor operates to fully close the back door.


Result:
Result Proceed to
The back door closer operates normally A
The back door closer does not operate normally B



A

END (BACK DOOR CLOSER HAS NOT BEEN INITIALIZED)

B

5.CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - AUXILIARY BATTERY AND BODY GROUND)
5.CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - AUXILIARY BATTERY AND BODY GROUND)
a.
B426089C64
1.469,0.365 1.885,0.646 0.417,0.281 1.51,2.625 1.906,2.885 0.396,0.26 1,0.396 0.833,0.396 0.833,0.396 0.833,1.229 true 0.771,0.146 0.604,0.146 0.604,0.146 0.604,1.229 true 1,4.417 1.229,4.417 1.229,4.417 1.229,3.75 true 2.344,2.552 2.177,2.552 2.177,2.552 2.177,3.417 true 1.563,0.417 2.021,0.615 0.458,0.198 10 false T12 1.583,2.667 2.042,2.865 0.458,0.198 10 false T13 1.073,0.323 1.385,0.521 0.313,0.198 10 false IG 0.667,4.333 1.281,4.531 0.615,0.198 10 false GND 0.833,0.073 1.448,0.271 0.615,0.198 10 false ECUB 2.406,2.479 2.677,2.74 0.271,0.26 10 false B 0.125,0.125 0.74,0.323 0.615,0.198 10 false *a
*a Rear view of wire harness connector
(to Multiplex Network Door ECU)


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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(T13)Location & Routing

Click Connector(T13)Body>No. 1 Back Door Wire>Multiplex Network Door ECU

T13-10 (GND) - Body ground Always Below 1 Ω



b.

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(T12,T13)Location & Routing

Click Connector(T12)Body>No. 1 Back Door Wire>Multiplex Network Door ECU

Click Connector(T13)Body>No. 1 Back Door Wire>Multiplex Network Door ECU

T12-20 (ECUB) - Body ground Ignition switch off 11 to 14 V
T13-1 (B) - Body ground Ignition switch off 11 to 14 V
T12-18 (IG) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

6.INSPECT BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.INSPECT BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY

Click hereVehicle Interior>DOOR LOCK>BACK DOOR LOCK>INSPECTION

Result:
Proceed to
OK
NG



OK

7.CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND)

NG

REPLACE BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY

Click hereVehicle Interior>DOOR LOCK>BACK DOOR LOCK>REMOVAL


7.CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND)
a.

Disconnect the T12 and T13 multiplex network door ECU connectors.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(T8,T13,T9,T12)Location & Routing

Click Connector(T8)Body>No. 1 Back Door Wire>Back Door Lock Assembly with Courtesy Light Switch

Click Connector(T13)Body>No. 1 Back Door Wire>Multiplex Network Door ECU

Click Connector(T9)Body>No. 1 Back Door Wire>Back Door Lock Assembly with Courtesy Light Switch

Click Connector(T12)Body>No. 1 Back Door Wire>Multiplex Network Door ECU

T8-2 (M+) - T13-4 (DC+) Always Below 1 Ω
T8-1 (M-) - T13-3 (DC-) Always Below 1 Ω
T9-4 (CTY) - T12-11 (FUL) Always Below 1 Ω
T9-2 (FSW) - T12-13 (PAWL) Always Below 1 Ω
T9-3 (CLS) - T12-9 (HAF) Always Below 1 Ω
T9-6 (OPN) - T12-7 (POS) Always Below 1 Ω
T9-1 (E) - Body ground Always Below 1 Ω
T8-2 (M+) or T13-4 (DC+) - Body ground Always 10 kΩ or higher
T8-1 (M-) or T13-3 (DC-) - Body ground Always 10 kΩ or higher
T9-4 (CTY) or T12-11 (FUL) - Body ground Always 10 kΩ or higher
T9-2 (FSW) or T12-13 (PAWL) - Body ground Always 10 kΩ or higher
T9-3 (CLS) or T12-9 (HAF) - Body ground Always 10 kΩ or higher
T9-6 (OPN) or T12-7 (POS) - 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