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

DOOR / HATCH  POWER BACK DOOR SYSTEM  B225001  Back Door Closer General Electrical Failure  


DESCRIPTION

The back door closer is controlled by the multiplex network door ECU.

The multiplex network door ECU determines the latch position of the back door lock with curtesy light switch assembly based on the combination of signals from the latch switch built into the back door lock with curtesy light switch assembly, back door courtesy switch, sector switch (home position switch) and pawl switch.

This DTC is stored when the back door closer is operating and the sector switch (home position switch) signal indicates that the latch is not in the correct position within the specified amount of time.

When this DTC is output, the multiplex network door ECU suspends back door closer control and power back door control.

DTC No. Detection Item DTC Detection Condition Trouble Area
B225001 Back Door Closer General Electrical Failure While the back door closer is operating, a malfunction is detected in position information from the initial switch within a specified amount of time.
·

Back door lock with courtesy light switch assembly

·

Harness or connector

·

Multiplex network door ECU



WIRING DIAGRAM

B679258E04
5.896,2.802 6.354,3 0.458,0.198 10 false R30 5.896,2.99 7.031,3.385 1.135,0.396 10 false Multiplex Network Door ECU 0.115,5.865 1.76,6.344 1.646,0.479 10 false Main Body ECU (Multiplex Network Body ECU) 0.125,5.688 0.281,5.885 0.156,0.198 10 false A 1.708,5.448 3.885,5.708 2.177,0.26 10 false Power Distribution Box Assembly 1.708,5.25 2.073,5.458 0.365,0.208 10 false 6F 1,4.781 1.458,4.979 0.458,0.198 10 false BCTY 3.813,4.635 4.125,4.833 0.313,0.198 10 false 2 1.5,4.656 1.781,4.865 0.281,0.208 10 false 19 0.75,3.219 1.063,3.417 0.313,0.198 10 false R14 0.75,3.406 2.635,3.823 1.885,0.417 10 false Back Door Lock with Courtesy Light Switch Assembly 0.844,2.469 2.635,2.719 1.792,0.25 10 false Back Door Courtesy Switch 1.313,1.896 2.115,2.125 0.802,0.229 10 false Pawl Switch 1.292,1.344 2.146,1.552 0.854,0.208 10 false Initial Switch 1.25,0.76 2.125,1 0.875,0.24 10 false Latch Switch 2.573,0.479 3.031,0.677 0.458,0.198 10 false CLS 2.552,1.031 3.01,1.229 0.458,0.198 10 false OPN 2.531,1.594 2.99,1.792 0.458,0.198 10 false FSW 2.573,2.167 3.031,2.365 0.458,0.198 10 false CTY 2.74,2.667 2.958,2.938 0.219,0.271 10 false E 2.979,1.042 3.135,1.24 0.156,0.198 10 false 6 2.979,1.604 3.135,1.802 0.156,0.198 10 false 2 2.979,2.177 3.135,2.375 0.156,0.198 10 false 4 2.979,2.677 3.135,2.875 0.156,0.198 10 false 1 6.063,0.563 6.521,0.76 0.458,0.198 10 false HAF 6.063,1.125 6.521,1.323 0.458,0.198 10 false POS 6.063,1.698 6.677,1.896 0.615,0.198 10 false PAWL 6.073,2.25 6.531,2.448 0.458,0.198 10 false FUL 2.979,0.479 3.135,0.677 0.156,0.198 10 false 3 5.823,0.479 5.979,0.677 0.156,0.198 10 false 5 5.771,1.052 6,1.292 0.229,0.24 10 false 15 5.771,1.604 6.031,1.833 0.26,0.229 10 false 13 5.844,2.177 5.99,2.427 0.146,0.25 10 false 3

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.READ VALUE USING GTS
a.

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

Body Electrical > Back Door > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Closer Position Switch Initial switch signal ON or OFF OFF: Back door lock sector gear out of center position (Initial switch off) -
Body Electrical > Back Door > Data List
Tester Display
Closer Position Switch
50003 489 1005

Result:
Result Proceed to
The value of Closer Position Switch is OFF A
None of the above conditions are met B



A

2.READ VALUE USING GTS

B

3.INSPECT BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY
2.READ VALUE USING GTS
a.

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

Body Electrical > Back Door > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Closer Position Switch Initial switch signal ON or OFF ON: Back door lock sector gear in center position (Initial switch on) -
Body Electrical > Back Door > Data List
Tester Display
Closer Position Switch
50003 489 1005

Result:
Result Proceed to
The value of Closer Position Switch is ON A
None of the above conditions are met B



A

REPLACE MULTIPLEX NETWORK DOOR ECU

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


B

3.INSPECT BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY
3.INSPECT BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY

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

Result:
Proceed to
OK
NG



OK

4.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


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

Disconnect the R14 back door lock with courtesy light switch assembly connector.


b.

Disconnect the R30 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
R14-6 (OPN) - R30-15 (POS) Always Below 1 Ω
R14-1 (E) - Body ground Always Below 1 Ω
R14-6 (OPN) or R30-15 (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