Back Door Entry Unlock Function does not Operate [12/2019 - 11/2023]: Procedure

1. When the door control switch on the multiplex network master switch assembly is operated, check that the back door lock and unlock according to the switch operation.

   Refer to OPERATION CHECK [12/2019 - 11/2023]

   OK

   Back door lock/unlock operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 11/2023]

Result: 

OK 

See step  2

1. Read the Data List according to the display on the GTS.

   Body Electrical > Smart Key > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   B-Dr Opening Operation	Back door opening operation	Long, Twice or OFF	Customize setting displayed	-

   Body Electrical > Smart Key > Data List 

   Tester Display
   B-Dr Opening Operation

   Result

   Result	Proceed to
   Customize setting is Long or Twice	A
   Customize setting is OFF	B

Result: 

B 

PERFORM CUSTOMIZE SETTING (Proceed to Customize Parameters) 

Refer to CUSTOMIZE PARAMETERS [12/2019 - 10/2022] , or refer to CUSTOMIZE PARAMETERS [10/2022 - 11/2023]

Result: 

A 

See step  3

1. Read the Data List according to the display on the GTS.

   Body Electrical > Smart Key > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Tr/B-Door Unlock SW	Back door opener switch assembly (open switch)	ON or OFF	ON: Back door opener switch assembly (open switch) pressed OFF: Back door opener switch assembly (open switch) not pressed	Displays whether the back door opener switch assembly (open switch) is on or off. Use this Data List item to help determine if there is a switch malfunction when the back door open function does not operate.

   Body Electrical > Smart Key > Data List 

   Tester Display
   Tr/B-Door Unlock SW

   OK

   The GTS display changes correctly in response to the operation of the back door opener switch assembly.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

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

Result: 

NG 

See step  4

1. Disconnect the M5 certification ECU (smart key ECU assembly) connector.
2. Disconnect the W11 back door opener switch assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M5-26 (TSW5) - W11-3 (UL)	Always	Below 1 Ω
   M5-26 (TSW5) or W11-3 (UL) - Other terminals and body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

Refer to INSPECTION [12/2019 - ]

Result

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

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

Result: 

NG 

REPLACE BACK DOOR OPENER SWITCH ASSEMBLY 

Refer to REMOVAL [12/2019 - ]