Driver Side Door Entry Lock 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	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   12 

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	-

   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 to COMPONENTS .
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: Identifying Front Door Outside Handle LH & b2 Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   b2-3 (TRG+) - b2-1 (TRG-)	ON	Below 1 Ω
   b2-3 (TRG+) - b2-1 (TRG-)	OFF	10 kΩ or higher

NG → See step   11 

OK: Go to next step 

Fig 2: Identifying B2 Front Door Outside Handle - N10 Front Door ECU Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the b2 handle 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
   b2-3 (TRG+) - N10-20 (TRG+)	Always	Below 1 Ω
   b2-3 (TRG+) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 3: Identifying B2 Front Door Outside Handle - B1 Door Electrical Key Oscillator Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the b2 handle 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
   b2-1 (TRG-) - b1-9 (TRG-)	Always	Below 1 Ω
   b2-1 (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 .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → See step   9 

OK → END (DOOR ELECTRICAL OSCILLATOR 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.

   OK

   Operates normally

NG → REPLACE CERTIFICATION ECU 

OK → END (FRONT DOOR ECU LH IS DEFECTIVE)