Driver Side Door Entry Unlock Function does not Operate: Procedure

1. When the master switch's door control switch is operated, check that the locked doors unlock. Refer to OPERATION CHECK .

   OK

   Locked doors unlock.

NG → See step   10 

OK: Go to next step 

1. Using the Techstream, read the Data List. Refer to DATA LIST / ACTIVE TEST .
   DRIVER DOOR
   
   

   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 lock is unlocked OFF: Driver side door lock is locked	-

   OK

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

NG → See step   12 

OK: Go to next step 

1. Using the Techstream, read the Data List. Refer to DATA LIST / ACTIVE TEST .
   DRIVER DOOR
   
   

   Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
   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 Techstream 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 to COMPONENTS .
2. Check that the entry function operates normally. Refer to OPERATION CHECK .

   OK

   Operates normally

NG → See step   11 

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 Terminals 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 to COMPONENTS .
2. Check that the entry function operates normally. Refer to OPERATION CHECK .

   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 to COMPONENTS .
2. Check that the entry function operates normally. Refer to OPERATION CHECK .

   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 to COMPONENTS .
2. Check that the entry function operates normally. Refer to OPERATION CHECK .

   OK

   Operates normally

NG → See step   11 

OK → END (FRONT DOOR ECU LH IS DEFECTIVE)