Driver Side Door Entry Lock and Unlock Functions do not Operate: Procedure

1. When the master switch assembly's door control switch is operated, check that the locked doors unlock.
   RESULT
   
   

   Result	Proceed to
   Door locks operate normally	OK
   Door locks do not operate normally	NG

NG → See step   18 

OK: Go to next step 

1. Using the Techstream, read the Data List.
   DRIVER DOOR (FRONT DOOR ECU LH)
   
   

   Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
   Lock Position SW	Driver side door lock position switch signal / ON or OFF	ON: Driver side door is unlocked OFF: Driver side door is locked	-

   OK

   On the screen, item changes between ON and OFF according to above chart.

NG → See step   21 

OK: Go to next step 

1. Using the Techstream, read the Data List.
   DRIVER DOOR (FRONT DOOR ECU LH)
   
   

   Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
   Outside Handle Trigger SW	Driver side door outside handle lock switch / ON or OFF	ON: Driver side door outside handle lock switch is pushed OFF: Driver side door outside handle lock switch is not pushed	-
   Entry Sensor	Driver side door touch sensor / ON or OFF	ON: Driver side door sensor is touched OFF: Driver side door sensor is not touched	-

   RESULT
   
   

   Result	Proceed to
   Display does not change according to manual operation	A
   Display changes according to manual operation	B

B → See step   10 

A: Go to next step 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard voltage

   Tester Connection	Condition	Specified Condition
   N10-12 (OSCB) - N10-19 (OSCE)	Always	11 to 14 V

NG → See step   19 

OK: Go to next step 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the N20 oscillator connector.
2. Disconnect the N10 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   N20-1 (B) - N10-12 (OSCB)	Always	Below 1 Ω
   N20-6 (SENS) - N10-14 (SENS)	Always	Below 1 Ω
   N20-7 (GND) - N10-19 (OSCE)	Always	Below 1 Ω
   N20-1 (B) - Body ground	Always	10 kΩ or higher
   N20-6 (SENS) - Body ground	Always	10 kΩ or higher
   N20-7 (GND) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the N20 oscillator connector.
2. Disconnect the N21 handle connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   N20-2 (SGT2) - N21-6 (SGT1)	Always	Below 1 Ω
   N20-9 (TRG-) - N21-1 (TRG-)	Always	Below 1 Ω
   N20-2 (SGT2) - Body ground	Always	10 kΩ or higher
   N20-9 (TRG-) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the N10 ECU connector.
2. Disconnect the N21 handle connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   N10-20 (TRG+) - N21-3 (TRG+)	Always	Below 1 Ω
   N10-20 (TRG+) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door electrical key oscillator with a new one or normally functioning one. Refer to COMPONENTS [09/2012 - ] .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → See step   9 

OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

1. Replace the front door outside handle LH with a new one or normally functioning one. Refer to REMOVAL [09/2012 - ] .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → See step   19 

OK → END (FRONT DOOR OUTSIDE HANDLE LH IS DEFECTIVE) 

1. Bring the electrical key transmitter near the driver door outside handle, and perform a driver door entry lock and unlock operation check.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NOTE:

   If the key is brought within 0.2 m (0.6 ft.) of the door handle, communication is not possible.

   HINT: 

   • When the electrical key transmitter is brought near the driver door outside handle, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
   • If the inspection result is that the operation check is normal, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
   RESULT
   
   

   Result	Proceed to
   Operation check fails	A
   Operation check is normal	B

B → AFFECTED BY WAVE INTERFERENCE 

A: Go to next step 

1. Diagnostic mode inspection (driver door outside oscillator)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   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 Access / Smart Communication Check /Overhead + Driver Side.
   5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

      HINT: 

      If the buzzer sounds, it can be determined that the driver seat outside transmitter is operating normally.

      OK

      Wireless door lock buzzer sounds

NG → See step   12 

OK → END (CERTIFICATION ECU IS DEFECTIVE) 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the L15 ECU connector.
2. Disconnect the N20 oscillator connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   L15-34 (CG1B) - N20-5 (CLGB)	Always	Below 1 Ω
   L15-33 (CLG1) - N20-10 (CLG)	Always	Below 1 Ω
   L15-34 (CG1B) - Body ground	Always	10 kΩ or higher
   L15-33 (CLG1) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the N10 ECU connector.
2. Disconnect the N20 oscillator connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   N10-15 (SEL) - N20-4 (SEL)	Always	Below 1 Ω
   N10-15 (SEL) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the N20 oscillator connector.
2. Disconnect the N21 handle connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   N20-3 (ANT1) - N21-5 (ANT1)	Always	Below 1 Ω
   N20-8 (ANT2) - N21-2 (ANT2)	Always	Below 1 Ω
   N20-3 (ANT1) - Body ground	Always	10 kΩ or higher
   N20-8 (ANT2) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door electrical key oscillator with a new one or normally functioning one. Refer to COMPONENTS [09/2012 - ] .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → See step   16 

OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

1. Replace the front door outside handle LH with a new one or normally functioning one. Refer to REMOVAL [09/2012 - ] .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → See step   17 

OK → END (FRONT DOOR OUTSIDE HANDLE LH IS DEFECTIVE) 

1. Replace the front door ECU LH with a new one or normally functioning one. Refer to COMPONENTS [09/2012 - ] .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → See step   20 

OK → END (FRONT DOOR ECU LH IS DEFECTIVE)