Back Door Entry Unlock Function does not Operate [08/2015 - 08/2017]: Procedure

1. When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation (Refer to OPERATION CHECK [08/2015 - ] ).

   OK

   Door locks operate normally.

Result: 

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] )

Result: 

OK 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Smart Key / Data List.
5. Read the Data List according to the display on the Techstream.
   SMART KEY
   
   

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

   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 [08/2015 - ] )

Result: 

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Smart Key / Data List.
5. Read the Data List according to the display on the Techstream.
   SMART KEY
   
   

   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.

   OK

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

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

See step  4

1. Disconnect the S7 back door opener switch assembly connector.
2. Disconnect the E124 certification ECU (smart key ECU assembly) connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   S7-3 (UL) - E124-5 (TSW5)	Always	Below 1 Ω
   S7-3 (UL) or E124-5 (TSW5) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Remove the back door opener switch assembly (Refer to REMOVAL [08/2015 - ] ).
2. Inspect the back door opener switch assembly (Refer to INSPECTION [08/2015 - 08/2017] ).

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

REPLACE BACK DOOR OPENER SWITCH ASSEMBLY 

(Refer to REMOVAL [08/2015 - ] )