Back Door Entry Lock Function does not Operate: Procedure

1. When the door control switch on the master switch assembly is operated, check that the doors unlock and lock according to switch operation . Refer to OPERATION CHECK .

   OK

   Door locks operate normally.

NG → See step   6 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power 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 (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
   
   

   Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
   Tr/B-Door Lock SW	Back door opener switch assembly (lock switch) / ON or OFF	ON: Back door opener switch assembly (lock switch) pushed OFF: Back door opener switch assembly (lock switch) not pushed	-

   OK

   On the Techstream screen, the display changes between ON and OFF as shown in the chart above.

NG → See step   3 

OK → See step   5 

1. Remove the back door opener switch assembly . Refer to REMOVAL .
   Fig 1: Identifying Back Door Opener Switch Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Position	Specified Condition
   1 (L) - 2 (E)	Back door opener switch assembly (lock switch) not pushed (OFF)	10 kΩ or higher
   1 (L) - 2 (E)	Back door opener switch assembly (lock switch) pushed (ON)	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Back Door Opener Switch Assembly)

NG → See step   7 

OK: Go to next step 

1. Disconnect the certification ECU (smart key ECU assembly) connector.
   Fig 2: Identifying Certification ECU And Back Door Opener Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L62-23 (TSW6) - V4-1 (L)	Always	Below 1 Ω
   L62-23 (TSW6) - Body ground	Always	10 kΩ or higher
   V4-1 (L) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly))
   *2	Front view of wire harness connector (to Back Door Opener Switch Assembly)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5