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 Cabin Switch  


DESCRIPTION

The power back door control switch signal is sent to the multiplex network door ECU.

If the power back door does not operate using the power back door control switch, a power back door control switch circuit malfunction is a possible cause.

WIRING DIAGRAM

E270968E20
1.344,1.427 1.802,1.625 0.458,0.198 10 false I205 1.354,1.594 2.927,1.948 1.573,0.354 10 false Power Back Door Control Switch 0.781,2.354 4.448,2.552 3.667,0.198 10 false : CAN Communication Line 5.063,1.979 6.896,2.344 1.833,0.365 10 false Multiplex Network Door ECU 3.125,1.917 3.583,2.115 0.458,0.198 10 false I86 3.115,2.094 4.76,2.448 1.646,0.354 10 false Main Body ECU (Multiplex Network Body ECU) 3.646,1.052 4.323,1.271 0.677,0.219 10 false PBDS 3.396,0.948 3.854,1.146 0.458,0.198 10 false 21 1.313,0.948 1.771,1.146 0.458,0.198 10 false 2 2.896,0.938 3.354,1.135 0.458,0.198 10 false 5 1.49,0.948 1.948,1.146 0.458,0.198 10 false E 2.469,0.958 2.927,1.156 0.458,0.198 10 false CSW

CAUTION / NOTICE / HINT

NOTICE:
·

First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.

for HEV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HEV Model)>HOW TO PROCEED WITH TROUBLESHOOTING

for Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

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.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 > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Back Door Operation Switch (Instrument) Power back door switch assembly signal OFF or ON OFF: Power back door control switch off
ON: Power back door control switch on 		-
Body Electrical > Main Body > Data List
Tester Display
Back Door Operation Switch (Instrument)
50003 449 47
OK:

The 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 POWER BACK DOOR CONTROL SWITCH
4.INSPECT 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 (POWER BACK DOOR CONTROL SWITCH - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] AND BODY GROUND)

NG

REPLACE POWER BACK DOOR CONTROL SWITCH

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


5.CHECK HARNESS AND CONNECTOR (POWER BACK DOOR CONTROL SWITCH - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] AND BODY GROUND)
a.

Disconnect the I205 power back door control switch connector.


b.

Disconnect the I86 main body ECU (multiplex network body ECU) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I205-5 (CSW) - I86-21 (PBDS) Always Below 1 Ω
I205-2 (E) - Body ground Always Below 1 Ω
I205-5 (CSW) or I86-21 (PBDS) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR