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

DESCRIPTION

When the driver side door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) the power door lock system, 2) the front door outside handle (for driver side), or 3) the certification ECU.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK POWER DOOR LOCK OPERATION

   
   

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

      OK
      Door locks operate normally.

   
   
   • OKClick here
   • NGClick here
2. Click here

   READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the intelligent tester on.

   4. Enter the following menus: Body / Main Body / Data List.

   5. Read the Data List according to the display on the intelligent tester.

      Table 1. Main body

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      D-Door Lock Pos SW	Driver side door lock position switch signal / ON or OFF	ON: Driver side door unlocked OFF: Driver side door locked	-

      OK
      On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.

   
   
   • OKClick here
   • NGClick here
3. Click here

   CHECK WAVE ENVIRONMENT

   
   
   1. 

      Bring the electrical key transmitter approximately 0.3 m (0.984 ft.) from door outside handle (for driver side) and perform a driver side door entry lock and unlock operation check.

      Note:

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

      Tip:
      

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

      • If the operation check 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.

      Table 2. Result

      Result	Proceed to
      Operation check fails	A
      Operation check is normal	B

   
   
   • AClick here
   • BClick here
4. Click here

   CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - FRONT DOOR OUTSIDE HANDLE)

   
   
   1. 

      Disconnect the H51 ECU connector.

   2. Disconnect the K7*1 or J9*2 handle 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 K7-3 (ANT2) - H51-4 (CG1B) Always Below 1 Ω K7-6 (ANT1) - H51-3 (CLG1) Always Below 1 Ω K7-2 (GND) - Body ground Always Below 1 Ω H51-4 (CG1B) - Body ground Always 10 kΩ or higher H51-3 (CLG1) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition J9-3 (ANT2) - H51-4 (CG1B) Always Below 1 Ω J9-6 (ANT1) - H51-3 (CLG1) Always Below 1 Ω J9-2 (GND) - Body ground Always Below 1 Ω H51-4 (CG1B) - Body ground Always 10 kΩ or higher H51-3 (CLG1) - Body ground Always 10 kΩ or higher

      Table 3. Text in Illustration

      *1	for LHD
      *2	for RHD
      *3	Front view of wire harness connector (to Front Door Outside Handle Assembly [for Driver Side])
      *4	Front view of wire harness connector (to Certification ECU)

   
   
   • OKClick here
   • NGClick here
5. Click here

   CHECK CERTIFICATION ECU

   
   
   1. 

      Disconnect the K7*1 or J9*2 handle connector.

      
      

      • *1: for LHD

      • *2: for RHD

   2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      for LHD
      Tester Connection Switch Condition Specified Condition K7-3 (ANT2) - K7-6 (ANT1) Engine switch off, all doors closed, all doors locked with wireless door lock control and key not in cabin No pulse generation → Pulse generation K7-5 (B) - Body ground Engine switch off → Engine switch on (IG) 9 to 14 V → Below 2 V
      for RHD
      Tester Connection Switch Condition Specified Condition J9-3 (ANT2) - J9-6 (ANT1) Engine switch off, all doors closed, all doors locked with wireless door lock control and key not in cabin No pulse generation → Pulse generation J9-5 (B) - Body ground Engine switch off → Engine switch on (IG) 9 to 14 V → Below 2 V

      Table 4. Text in Illustration

      *1	for LHD
      *2	for RHD
      *3	Front view of wire harness connector (to Front Door Outside Handle Assembly [for Driver Side])

   
   
   • OKClick here
   • NGClick here
6. Click here

   REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER SIDE)

   
   

   1. Replace the front door outside handle assembly (for driver side) (Click here).

   
   
   • NEXTClick here
7. Click here

   CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (OPERATION)

   
   

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

      OK
      Entry functions operate normally.

   
   
   • OKClick here
   • NGClick here
8. Click here

   GO TO POWER DOOR LOCK CONTROL SYSTEMClick here

9. Click here

   AFFECTED BY WAVE INTERFERENCE

10. Click here

    REPLACE CERTIFICATION ECU

11. Click here

    REPLACE CERTIFICATION ECU

12. Click here

    END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY IS DEFECTIVE)

13. Click here

    GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Driver Door LOCK / UNLOCK Functions do not Operate)Click here

14. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR