Key Lock-in Prevention Function does not Work Properly [08/2013 - ]: Procedure

1. Connect a Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the tester ON.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. According to the display on tester, perform the "Data List".

   Main Body ECU

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Door Courtesy SW	Driver side door courtesy switch signal / ON or OFF	ON: Driver side door is open OFF: Driver side door is closed	-

   OK

   The display is as specified in the normal condition.

NG → See step   5 

OK: Go to next step 

1. Connect a Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the tester ON.
4. Enter the following menus: Body Electrical / Main Body / Active Test.
5. According to the display on tester, perform the "Active Test".

   Main Body ECU

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Key Unlock Warning SW	Unlock warning switch signal / ON or OFF	ON: Key is in ignition key cylinder OFF: No key is in ignition key cylinder	-

   OK

   The display is as specified in the normal condition.

NG → REPLACE MAIN BODY ECU 

OK: Go to next step 

1. Remove the unlock warning switch.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Not pushed	10 kΩor higher
   1 - 2	Pushed	Below 1 Ω

NG → REPLACE UNLOCK WARNING SWITCH 

OK: Go to next step 

1. Disconnect the E21 unlock warning switch connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the E8 main body ECU connector.
3. Measure the resistance.

   Standard resistance

   Tester Connection	Specified Condition
   E21-2 - E8-14 (KSW)	Below 1 Ω
   E21-2 or E8-14 (KSW) - Body ground	10 kΩ or higher
   E21-1 - Body ground	Below 1 Ω

4. Reconnect the unlock warning switch connector.
5. Reconnect the main body ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE MAIN BODY ECU 

1. Remove the front door courtesy light switch (driver side).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1 - Body ground	Not pushed (ON)	Below 1 Ω
   1 - Body ground	Pushed (OFF)	10 kΩ or higher

3. Reinstall the front door courtesy light switch (driver side).

NG → REPLACE FRONT DOOR COURTESY LIGHT SWITCH (DRIVER SIDE) 

OK: Go to next step 

1. Disconnect the J1 front door courtesy light switch (driver side) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the E7 main body ECU connector.
3. Measure the resistance.

   Standard resistance

   Tester Connection	Specified Condition
   J1-1 - E7-23 (DCTY)	Below 1 Ω
   J1-1 or E7-23 (DCTY) - Body ground	10 kΩ or higher

4. Reconnect the front door courtesy light switch connector.
5. Reconnect the main body ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE MAIN BODY ECU