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

DOOR / HATCH  POWER BACK DOOR SYSTEM  B225101  Back Door Closer Switch General Electrical Failure  


DESCRIPTION

The multiplex network door ECU receives signals from the latch switch, position switch, pawl switch and back door courtesy switch, which are built into the back door lock with courtesy light switch assembly. Based on these signals, the latch position of the back door lock with courtesy light switch assembly is determined.

DTC No. Detection Item DTC Detection Condition Trouble Area
B225101 Back Door Closer Switch General Electrical Failure While the back door closer is operating, a malfunction in the position information from the back door courtesy switch is detected within a certain amount of time.
·

Back door lock with courtesy light switch assembly

·

Multiplex network door ECU

·

Wire harness or connector



WIRING DIAGRAM

B588265E04
4.927,1.844 5.385,2.042 0.458,0.198 10 false T12 4.99,0.76 5.448,0.958 0.458,0.198 10 false FUL 4.927,2.01 6.719,2.25 1.792,0.24 10 false Multiplex Network Door ECU 4.677,0.646 4.958,0.875 0.281,0.229 10 false 11 3.01,0.635 3.167,0.833 0.156,0.198 10 false 4 3,1.333 3.156,1.531 0.156,0.198 10 false 1 2.583,0.635 3.042,0.833 0.458,0.198 10 false CTY 0.854,0.938 3,1.135 2.146,0.198 10 false Back Door Courtesy Switch 2.74,1.333 2.896,1.531 0.156,0.198 10 false E 0.156,1.844 0.615,2.042 0.458,0.198 10 false T9 0.156,2.01 3.677,2.208 3.521,0.198 10 false Back Door Lock with Courtesy Light Switch Assembly 1.792,3.125 2.406,3.323 0.615,0.198 10 false BCTY 2.281,3.01 2.615,3.219 0.333,0.208 10 false 19 2.99,3 3.302,3.198 0.313,0.198 10 false 2 2.333,3.531 2.646,3.729 0.313,0.198 10 false 4E 2.323,3.688 3.76,4.292 1.438,0.604 10 false Power Distribution Box Assembly 0.469,3.729 0.781,3.927 0.313,0.198 10 false MB 0.469,3.896 2.115,4.354 1.646,0.458 10 false Main Body ECU (Multiplex Network Body ECU)

CAUTION / NOTICE / HINT

NOTICE:

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.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
Courtesy Switch Back door courtesy switch signal ON or OFF ON: Back door open
OFF: Back door closed 		-
Body Electrical > Back Door > Data List
Tester Display
Courtesy Switch
50003 489 1018
OK:

The display is as specified in the normal condition column.



Result:
Proceed to
OK
NG



OK

REPLACE MULTIPLEX NETWORK DOOR ECU

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


NG

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

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

Result:
Proceed to
OK
NG



OK

3.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


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

Disconnect the 4E power distribution box assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

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

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

T9-4 (CTY) - T12-11 (FUL) Always Below 1 Ω
T9-1 (E) - Body ground Always Below 1 Ω
T9-4 (CTY) or T12-11 (FUL) - 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