ENTRY AND START SYSTEM(for Entry Function) Front Passenger Side Door Entry Unlock Function does not Operate

DESCRIPTION

If the entry unlock function does not operate for the front passenger side door only, but the entry lock function operates, the request code is being transmitted properly from the front passenger door. In this case, there may be a problem related to the touch sensor (connection between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger door) (unlock sensor)).

CAUTION / NOTICE / HINT

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 switch operation (Click here).

      OK
      Door locks operate normally.

   
   
   • OKClick here
   • NG

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

2. Click here

   READ VALUE USING INTELLIGENT TESTER (UNLOCK DETECTION 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. According to the display on the intelligent tester, read the Data List.

      Table 1. Main Body

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      FR Door Lock Pos*1	Front door unlock detection switch RH signal / LOCK or UNLOCK	LOCK: Front RH side door locked UNLOCK: Front RH side door unlocked	-
      FL Door Lock Pos*2	Front door unlock detection switch LH signal / LOCK or UNLOCK	LOCK: Front LH side door locked UNLOCK: Front LH side door unlocked	-

      
      

      • *1: for LHD

      • *2: for RHD

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

   
   
   • OKClick here
   • NG

     GO TO LIGHTING SYSTEM (PROCEED TO DOOR UNLOCK DETECTION SWITCH CIRCUIT) (Click here)

3. Click here

   READ VALUE USING INTELLIGENT TESTER (P-DOOR TOUCH SENSOR)

   
   

   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 / Entry & Start / Data List.

   5. According to the display on the intelligent tester, read the Data List.

      Table 2. Entry & Start

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      P-Door Touch Sensor	Front door outside handle assembly (for front passenger side) (unlock sensor) / OFF or ON	OFF: Front door outside handle assembly (for front passenger side) (unlock sensor) not touched ON: Front door outside handle assembly (for front passenger side) (unlock sensor) touched	Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.

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

   
   
   • OK

     REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

   • NGClick here
4. Click here

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

   
   

   1. Disconnect the F63 certification ECU (smart key ECU assembly) connector.

   2. Disconnect the G11*1 or H10*2 front door outside handle assembly connector.

      
      

      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      Table 3. for LHD Tester Connection Condition Specified Condition F63-11 (CLG2) - G11-6 (ANT1) Always Below 1 Ω F63-10 (CG2B) - G11-3 (ANT2) Always Below 1 Ω F63-11 (CLG2) - Body ground Always 10 kΩ or higher F63-10 (CG2B) - Body ground Always 10 kΩ or higher
      Table 4. for RHD Tester Connection Condition Specified Condition F63-11 (CLG2) - H10-6 (ANT1) Always Below 1 Ω F63-10 (CG2B) - H10-3 (ANT2) Always Below 1 Ω F63-11 (CLG2) - Body ground Always 10 kΩ or higher F63-10 (CG2B) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

5. Click here

   INSPECT FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR PASSENGER SIDE DOOR)

   
   

   1. Reconnect the F63 certification ECU (smart key ECU assembly) connector.

   2. Reconnect the G11*1 or H10*2 front door outside handle assembly (for passenger side door) connector.

      
      

      • *1: for LHD

      • *2: for RHD

   3. 

      Using an oscilloscope, check the waveform.

      Table 5. Text in Illustration

      *a	Component with harness connected (Certification ECU (smart key ECU assembly))	*b	Waveform
      *c	Front passenger side door unlock sensor touched	-	-

      OK

      Tester Connection Condition Tool Setting Specified Condition F63-10 (CG2B) - F65-11 (E) F63-11 (CLG2) - F65-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed All doors unlocked Electrical key transmitter sub-assembly brought outside detection area*1 Electrical key transmitter sub-assembly not sufficiently close to vehicle Front passenger side door unlock sensor not touched → touched 2 V/DIV., 500 ms/DIV Pulse generation (See waveform)

      
      

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

   
   
   • OK

     REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

   • NG

     REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR PASSENGER SIDE DOOR) (Click here)