RM38T0EC _59 Vehicle Exterior _113746 DOOR / HATCH _0504731 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, initial switch, pawl switch and back door courtesy switch, which are built into the back door lock assembly. Based on these switch 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 is detected in position information from the back door courtesy switch within a specified amount of time.
·

Back door lock with courtesy light switch assembly

·

Harness or connector

·

Multiplex network door ECU



WIRING DIAGRAM

E463352E04
1.313,1.052 2.156,1.281 0.844,0.229 10 false Latch Switch 1.344,1.594 2.188,1.823 0.844,0.229 10 false Initial Switch 1.344,2.146 2.188,2.375 0.844,0.229 10 false Pawl Switch 0.906,2.688 2.688,2.896 1.781,0.208 10 false Back Door Courtesy Switch 6.104,0.885 6.49,1.083 0.385,0.198 10 false HAF 2.625,1.344 3.01,1.542 0.385,0.198 10 false OPN 2.594,1.885 2.979,2.083 0.385,0.198 10 false FSW 2.646,2.438 3.031,2.635 0.385,0.198 10 false CTY 2.802,2.969 3.188,3.167 0.385,0.198 10 false E 0.063,3.552 0.448,3.75 0.385,0.198 10 false U17 0.063,3.719 3.365,4.01 3.302,0.292 10 false Back Door Lock with Courtesy Light Switch Assembly 2.667,0.802 3.052,1 0.385,0.198 10 false CLS 6.094,1.458 6.479,1.656 0.385,0.198 10 false POS 6.073,1.99 6.75,2.24 0.677,0.25 10 false PAWL 6.063,2.615 6.448,2.813 0.385,0.198 10 false FUL 5.917,3.552 6.302,3.75 0.385,0.198 10 false U22 5.917,3.729 7.042,4.115 1.125,0.385 10 false Multiplex Network Door ECU 3.031,0.792 3.417,0.99 0.385,0.198 10 false 3 3.021,1.333 3.406,1.531 0.385,0.198 10 false 6 3.021,1.875 3.406,2.073 0.385,0.198 10 false 2 3.021,2.427 3.406,2.625 0.385,0.198 10 false 4 3.01,2.958 3.396,3.156 0.385,0.198 10 false 1 5.885,0.771 6.271,0.969 0.385,0.198 10 false 9 5.906,1.333 6.292,1.531 0.385,0.198 10 false 7 5.833,1.885 6.219,2.083 0.385,0.198 10 false 13 5.823,2.427 6.208,2.625 0.385,0.198 10 false 11

CAUTION / NOTICE / HINT

NOTICE:
·

If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.

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

·

If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.



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 OFF: Back door closed -
Body Electrical > Back Door > Data List
Tester Display
Courtesy Switch
50003 489 1018

Result:
Result Proceed to
The value of Courtesy 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
Courtesy Switch Back door courtesy switch signal ON or OFF ON: Back door open -
Body Electrical > Back Door > Data List
Tester Display
Courtesy Switch
50003 489 1018

Result:
Result Proceed to
The value of Courtesy 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 U22 multiplex network door ECU connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
U17-4 (CTY) - U22-11 (FUL) Always Below 1 Ω
U17-1 (E) - Body ground Always Below 1 Ω
U17-4 (CTY) or U22-11 (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