Driver Side Door Entry Lock and Unlock Functions do not Operate [09/2014 - ]: Procedure

1. When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation (Refer to OPERATION CHECK [09/2014 - ] ).

   OK

   Door locks operate normally.

Result:  NG

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] )

Result:  OK

OK 

See step  2

1. Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly LH (for driver door) and perform an entry function check (Refer to OPERATION CHECK [09/2014 - ] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a	Approximately 0.3 m (0.984 ft.)

   NOTE:

   If the electrical key transmitter sub-assembly is brought within 0.2 m (0.656 ft.) of the door handle, communication may not be possible.

   HINT: 

   If the inspection result is that the problem only occurs in certain locations or at certain times of day, 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
   Entry function does not operate normally.	A
   Entry function operates normally.	B

Result:  B

B 

AFFECTED BY WAVE INTERFERENCE 

Result:  A

A 

See step  3

1. Disconnect the Q23 front door outside handle assembly LH (for driver door) connector.
2. Disconnect the N94 certification ECU (smart key ECU assembly) connector.
3. Disconnect the Q18 front multiplex network door ECU LH connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Q23-3 (ANT2) - N94-4 (CG1B)	Always	Below 1 Ω
   Q23-6 (ANT1) - N94-5 (CLG1)	Always	Below 1 Ω
   Q23-5 (B) - N94-15 (POS1)	Always	Below 1 Ω
   Q23-2 (GND) - Q18-11 (OSCE)	Always	Below 1 Ω
   Q23-3 (ANT2) or N94-4 (CG1B) - Body ground	Always	10 kΩ or higher
   Q23-6 (ANT1) or N94-5 (CLG1) - Body ground	Always	10 kΩ or higher
   Q23-5 (B) or N94-15 (POS1) - Body ground	Always	10 kΩ or higher

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  OK

OK 

See step  4

1. Disconnect the Q23 front door outside handle assembly LH (for driver door) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Connect the N94 certification ECU (smart key ECU assembly) connector.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   Q23-5 (B) - Q23-2 (GND)	Power switch off → on (IG)	9 to 12 V → Below 2 V

4. Using an oscilloscope, check the waveform.

   OK

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   Q23-3 (ANT2) - Q23-6 (ANT1)	Procedure: Power switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area* All doors locked through wireless operation	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform)

   • *: For details about the areas that are inside the entry function detection area, refer to Operation Check (OPERATION CHECK [09/2014 - ] ).
   TEXT IN ILLUSTRATION
   
   

   *1	Waveform
   *a	Front view of wire harness connector (to Front Door Outside Handle Assembly LH [for Driver Door])

Result:  NG

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [09/2014 - ] )

Result:  OK

OK 

See step  5

1. Temporarily replace the front door outside handle assembly LH (for driver door) with a new or known good one (Refer to DISASSEMBLY [09/2014 - ] ).

Result:  NEXT

NEXT 

See step  6

1. Check that the entry functions operate normally (Refer to OPERATION CHECK [09/2014 - ] ).

   OK

   Entry functions operate normally.

Result:  OK

OK 

END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH [FOR DRIVER DOOR] WAS DEFECTIVE) 

Result:  NG

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [09/2014 - ] )