RM38T0EC _59 Vehicle Exterior _113746 DOOR / HATCH _0504731 POWER BACK DOOR SYSTEM J

DOOR / HATCH  POWER BACK DOOR SYSTEM  Power Back Door does not Operate Using Outside Switch  


DESCRIPTION

The No. 1 power back door control switch signal is sent to the multiplex network door ECU.

If the power back door does not operate using the No. 1 power back door control switch, a No. 1 power back door control switch circuit malfunction is a possible cause.

WIRING DIAGRAM

E357495E43
4.26,1.969 4.719,2.167 0.458,0.198 10 false U22 1.438,1.479 1.896,1.677 0.458,0.198 10 false U38 1.281,0.969 1.438,1.167 0.156,0.198 10 false 2 3.188,0.948 3.344,1.146 0.156,0.198 10 false 5 4.313,0.958 4.646,1.156 0.333,0.198 10 false 8 4.542,0.948 5.156,1.146 0.615,0.198 10 false BDDN 1.427,1.635 2.917,2 1.49,0.365 10 false No. 1 Power Back Door Control Switch 5.115,1.083 5.729,1.281 0.615,0.198 10 false CPU 4.281,2.115 6.094,2.385 1.813,0.271 10 false Multiplex Network Door ECU 1.438,0.969 1.594,1.167 0.156,0.198 10 false E 2.823,0.969 3.281,1.167 0.458,0.198 10 false CLS

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


PROCEDURE

1.CHECK VEHICLE CONDITION
a.

Check that the power back door function on the multi-information display in the combination meter assembly is set to ON.

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR SYSTEM>CUSTOMIZE PARAMETERS


Result:
Result Proceed to
Power back door function on the multi-information display in the combination meter assembly is set to ON (power back door system operation is permitted) A
Power back door function on the multi-information display in the combination meter assembly is set to OFF (power back door system operation is prohibited) B



A

2.CHECK POWER BACK DOOR SYSTEM CONDITION

B

SET POWER BACK DOOR FUNCTION TO ON (PERMIT POWER BACK DOOR SYSTEM OPERATION)

2.CHECK POWER BACK DOOR SYSTEM CONDITION
a.

Check the power back door system condition.


Result:
Result Proceed to
The malfunction symptom reproduces A
The malfunction symptom does not reproduce B



A

3.READ VALUE USING GTS

B

GO TO POWER BACK DOOR CANNOT BE OPERATED FREQUENTLY

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR SYSTEM>Power Back Door cannot be Operated Frequently


3.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
PBD Close Switch No. 1 power back door control switch signal ON or OFF ON: No. 1 power back door control switch pushed
OFF: No. 1 power back door control switch not pushed 		-
Body Electrical > Back Door > Data List
Tester Display
PBD Close Switch
50003 489 1038
OK:

The No. 1 power back door control switch functions 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

4.INSPECT NO. 1 POWER BACK DOOR CONTROL SWITCH
4.INSPECT NO. 1 POWER BACK DOOR CONTROL SWITCH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR CONTROL SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (NO. 1 POWER BACK DOOR CONTROL SWITCH - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND)

NG

REPLACE NO. 1 POWER BACK DOOR CONTROL SWITCH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR CONTROL SWITCH>REMOVAL


5.CHECK HARNESS AND CONNECTOR (NO. 1 POWER BACK DOOR CONTROL SWITCH - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND)
a.

Disconnect the U38 No. 1 power back door control switch connector.


b.

Disconnect the U22 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
U38-5 (CLS) - U22-8 (BDDN) Always Below 1 Ω
U38-2 (E) - Body ground Always Below 1 Ω
U38-5 (CLS) or U22-8 (BDDN) - 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