Back Door Closer does not Operate [11/2018 - 10/2023]: Procedure

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

   Refer to CUSTOMIZE PARAMETERS [11/2018 - 10/2023]

   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

Result: 

B 

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

Result: 

A 

See step  2

1. Check power back door system condition.

   Result

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

Result: 

B 

GO TO POWER BACK DOOR CANNOT BE OPERATED FREQUENTLY. Refer to  Power Back Door cannot be Operated Frequently [11/2018 - 10/2023]  

Result: 

A 

See step  3

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [11/2018 - 10/2023]

   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 [11/2018 - 10/2023]  

Result: 

C 

GO TO DTC B2251. Refer to  DTC B2251: Back Door Closer Switch Malfunction [11/2018 - 10/2023]  

Result: 

A 

See step  4

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  5

1. Disconnect the multiplex network door ECU connectors.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   R19-10 (GND) - Body ground	Always	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   R18-20 (ECUB) - Body ground	Power switch off	11 to 14 V
   R19-1 (B) - Body ground	Power switch off	11 to 14 V
   R18-18 (IG) - Body ground	Power switch on (IG)	11 to 14 V
   	Power switch off	Below 1 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Remove the back door lock with courtesy light switch assembly.

   Refer to REMOVAL [11/2018 - ]

2. Inspect the back door lock with courtesy light switch assembly.

   Refer to INSPECTION [11/2018 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

Result: 

OK 

See step  7

1. Disconnect the R13 and R14 back door lock with courtesy light switch assembly connectors.
2. Disconnect the R18 and R19 multiplex network door ECU connectors.
3. Disconnect the 4H instrument panel junction block assembly connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   R13-2 (M+) - R19-4 (DC+)	Always	Below 1 Ω
   R13-1 (M-) - R19-3 (DC-)	Always	Below 1 Ω
   R14-4 (CTY) - R18-11 (FUL)	Always	Below 1 Ω
   R14-2 (FSW) - R18-13 (PAWL)	Always	Below 1 Ω
   R14-3 (CLS) - R18-9 (HAF)	Always	Below 1 Ω
   R14-6 (OPN) - R18-7 (POS)	Always	Below 1 Ω
   R14-1 (E) - Body ground	Always	Below 1 Ω
   R13-2 (M+) or R19-4 (DC+) - Body ground	Always	10 kΩ or higher
   R13-1 (M-) or R19-3 (DC-) - Body ground	Always	10 kΩ or higher
   R14-2 (FSW) or R18-13 (PAWL) - Body ground	Always	10 kΩ or higher
   R14-4 (CTY) or R18-11 (FUL) - Body ground	Always	10 kΩ or higher
   R14-3 (CLS) or R18-9 (HAF) - Body ground	Always	10 kΩ or higher
   R14-6 (OPN) or R18-7 (POS) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [11/2018 - 10/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR