Back Door Closer does not Operate [12/2019 - 11/2023]: Procedure

1. Check for DTCs.

   Body Electrical > Back Door > Trouble Codes 

   Result

   Result	Proceed to
   DTC is not output	A
   DTC B2250 is output	B
   DTC B2251 is output	C

Result: 

B 

GO TO DTC B2250. Refer to  DTC B2250: Back Door Closer Operation Malfunction [12/2019 - 11/2023]  

Result: 

C 

GO TO DTC B2251. Refer to  DTC B2251: Back Door Closer Switch Malfunction [12/2019 - 11/2023]  

Result: 

A 

See step  2

1. Check if the back door can be fully closed by hand.

   Result

   Result	Proceed to
   The back door can be closed normally	A
   The back door cannot be closed normally	B

Result: 

B 

IMPROPER FIT OF BACK DOOR, OR A FOREIGN OBJECT IS STUCK IN BACK DOOR 

Result: 

A 

See step  3

1. Initialize the power back door system.

   Refer to INITIALIZATION [12/2019 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. When the back door is partially closed, check that the motor operates to fully close the back door.

   Result

   Result	Proceed to
   The back door closer operates normally	A
   The back door closer does not operate normally	B

Result: 

A 

END (BACK DOOR CLOSER HAS NOT BEEN INITIALIZED) 

Result: 

B 

See step  5

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Rear view of wire harness connector (to Multiplex Network Door ECU)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   W19-10 (GND) - Body ground	Always	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   W18-20 (ECUB) - Body ground	Ignition switch off*1 Always*2	11 to 14 V
   W19-1 (B) - Body ground	Ignition switch off*1 Always*2	11 to 14 V
   W18-18 (IG) - Body ground	Ignition switch ON	11 to 14 V
   	Ignition switch off	Below 1 V

   1. *1: for HV Model
   2. *2: for Gasoline Model

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

Refer to INSPECTION [12/2019 - ]

Result

Result: 

NG 

REPLACE BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

Result: 

OK 

See step  7

1. Disconnect the W18 and W19 multiplex network door ECU connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   W13-2 (M+) - W19-4 (DC+)	Always	Below 1 Ω
   W13-1 (M-) - W19-3 (DC-)	Always	Below 1 Ω
   W14-4 (CTY) - W18-11 (FUL)	Always	Below 1 Ω
   W14-2 (FSW) - W18-13 (PAWL)	Always	Below 1 Ω
   W14-3 (CLS) - W18-9 (HAF)	Always	Below 1 Ω
   W14-6 (OPN) - W18-7 (POS)	Always	Below 1 Ω
   W14-1 (E) - Body ground	Always	Below 1 Ω
   W13-2 (M+) or W19-4 (DC+) - Body ground	Always	10 kΩ or higher
   W13-1 (M-) or W19-3 (DC-) - Body ground	Always	10 kΩ or higher
   W14-4 (CTY) or W18-11 (FUL) - Body ground	Always	10 kΩ or higher
   W14-2 (FSW) or W18-13 (PAWL) - Body ground	Always	10 kΩ or higher
   W14-3 (CLS) or W18-9 (HAF) - Body ground	Always	10 kΩ or higher
   W14-6 (OPN) or W18-7 (POS) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [12/2019 - 11/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR