Driver Side Door Entry Unlock Function does 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   10 

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
   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   11 

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
   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

   OK

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

NG → See step   5 

OK: Go to next step 

1. Replace the front door ECU LH with a new one or normally functioning one. Refer toCOMPONENTS .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → REPLACE CERTIFICATION ECU 

OK → END (FRONT DOOR ECU LH IS DEFECTIVE) 

Fig 1: Checking Harness And Connector (Door Electrical Key Oscillator -- Front Door LH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the N10 ECU connector.
2. Disconnect the b1 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) - b1-4 (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 

Fig 2: Identifying B1 Oscillator Connector And B2 Handle Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the b1 oscillator connector.
2. Disconnect the b2 handle connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   b1-2 (SGT4) - b2-6 (SGT3)	Always	Below 1 Ω
   b1-2 (SGT4) - 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 toCOMPONENTS .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → See step   8 

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 toCOMPONENTS .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → See step   9 

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 toCOMPONENTS .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → REPLACE CERTIFICATION ECU 

OK → END (FRONT DOOR ECU LH IS DEFECTIVE)