ENTRY AND START SYSTEM(for Entry Function) Driver Side Door Entry Lock and Unlock Functions do not Operate

DESCRIPTION

If the entry lock and unlock functions do not operate for the driver door only, the request code may not be being transmitted from the driver door or the front door outside handle assembly (for driver door) (touch sensor) may be malfunctioning. If the entry functions for other doors operate properly, communication between the electrical key transmitter sub-assembly and door control receiver is normal. In this case, there may be a problem with request code transmission (communication between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for driver side door) [driver door electrical key antenna]), or there may be wave interference.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK POWER DOOR LOCK OPERATION

   
   

   1. When the door control switch on the power window regulator master switch assembly is operated, check that the doors unlock and lock according to switch operation Click here.

      OK
      Door locks operate normally.

   
   

   NG

   GO TO POWER DOOR LOCK CONTROL SYSTEM (PROCEED TO PROBLEM SYMPTOMS TABLE) Click here

   OK

2. CHECK WAVE ENVIRONMENT

   
   
   1. 

      Text in Illustration

      *A	for LHD
      *B	for RHD
      *a	Approximately 0.3 m (0.98 ft.)

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

      Note

      If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible.

      Tech Tips

      
      

      • When the electrical key transmitter sub-assembly is brought near the front door outside handle assembly, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the operation 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.

      OK
      Entry functions operate normally.

      Result

      Result	Proceed to
      Entry functions operate abnormally	A
      Entry functions operate normally	B

   
   

   B

   AFFECTED BY WAVE INTERFERENCE

   A

3. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER SIDE DOOR))

   
   

   1. Disconnect the F86 certification ECU (smart key ECU assembly) connector.

   2. Disconnect the H9*1 or G9*2 front door outside handle assembly (for driver side door) connector.

      
      

      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD Tester Connection Condition Specified Condition F86-12 (CLG1) - H9-6 (ANT1) Always Below 1 Ω F86-13 (CG1B) - H9-3 (ANT2) Always Below 1 Ω F86-19 (POS1) - H9-5 (B) Always Below 1 Ω H9-2 (GND) - Body ground Always Below 1 Ω F86-12 (CLG1) - Body ground Always 10 kΩ or higher F86-13 (CG1B) - Body ground Always 10 kΩ or higher F86-19 (POS1) - Body ground Always 10 kΩ or higher
      for RHD Tester Connection Condition Specified Condition F86-12 (CLG1) - G9-6 (ANT1) Always Below 1 Ω F86-13 (CG1B) - G9-3 (ANT2) Always Below 1 Ω F86-19 (POS1) - G9-5 (B) Always Below 1 Ω G9-2 (GND) - Body ground Always Below 1 Ω F86-12 (CLG1) - Body ground Always 10 kΩ or higher F86-13 (CG1B) - Body ground Always 10 kΩ or higher F86-19 (POS1) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

4. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO DRIVER SIDE DOOR ELECTRICAL KEY ANTENNA)

   
   

   1. Reconnect the F86 certification ECU (smart key ECU assembly) connector.

   2. 

      Text in Illustration

      *A	for LHD
      *B	for RHD
      *a	Front view of wire harness connector (to Front Door Outside Handle Assembly (for Driver Side Door))
      *b	Waveform

      Using an oscilloscope, check the waveform.

      OK

      Tester Connection Condition Tool Setting Specified Condition H9-6 (ANT1) - H9-3 (ANT2)*1 G9-6 (ANT1) - G9-3 (ANT2)*2 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*3 All doors locked through wireless operation 5 V/DIV., 500 ms./DIV. Pulse generation (See waveform)

      
      

      • *1: for LHD

      • *2: for RHD

      • *3: For details about the areas that are outside the entry function detection area, refer to Operation Check Click here.

   
   

   NG

   REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

   OK

5. REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER SIDE DOOR)

   
   

   1. Temporarily replace the front door outside handle assembly (for driver side door) with a new or known good one Click here.

   
   

   NEXT

6. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER SIDE DOOR) (OPERATION)

   
   

   1. Check that the entry functions operate normally Click here.

      OK
      Entry functions operate normally.

   
   

   OK

   END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER SIDE DOOR) WAS DEFECTIVE)

   NG

   REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)