ENTRY AND START SYSTEM Key Luggage Compartment Lock-in Prevention Function does not Operate

DESCRIPTION

If the entry luggage compartment lock-in prevention function does not operate, either of the following may be the cause: 1) communication between the indoor electrical key oscillator (for luggage compartment) and electrical key transmitter cannot be performed; or 2) a malfunction in the certification ECU.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK ENTRY AND START SYSTEM

   
   

   1. Check that the entry luggage compartment open function operates Click here.

   
   

   NG

   GO TO DTC OF OTHER COMPONENTS Click here

   OK

2. CHECK WAVE ENVIRONMENT

   
   

   1. Bring the electrical key transmitter near the indoor electrical key oscillator (for luggage compartment), and check that the entry luggage compartment lock-in prevention function operates.

      Note

      If the key is brought within 0.2 m (0.656 ft.) of the indoor electrical key oscillator, communication is not possible.

      Tech Tips

      
      

      • When the electrical key transmitter is brought near the indoor electrical key oscillator (for luggage compartment), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the inspection result is that 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.

   
   

   NG

   KEY DIAGNOSTIC MODE Click here

   OK

   AFFECTED BY WAVE INTERFERENCE

3. KEY DIAGNOSTIC MODE

   
   

   1. 

      Diagnostic mode inspection indoor electrical key oscillator (for luggage compartment)

      
      

      1. Connect the intelligent tester to the DLC3.

      2. Turn the power switch ON (IG).

      3. Turn the intelligent tester on.

      4. Enter the following menus:

         Select: Body Electrical / Entry&Start / Key Communication Check /Overhead + Luggage.

      5. When the electrical key transmitter is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds*.

         Tech Tips

         
         

         • If the buzzer sounds, it can be determined that the luggage compartment interior transmitter is operating normally.

         • *: For Europe and China, the wireless door lock buzzer does not sound.

         OK
         Wireless door lock buzzer sounds

   
   

   NG

   CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR) Click here

   OK

   REPLACE CERTIFICATION ECU

4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR)

   

   
   

   1. Disconnect the L15 ECU connector.

   2. Disconnect the S44 oscillator connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition L15-15 (CLG7) - S44-1 (CLG6) Always Below 1 Ω L15-16 (CG7B) - S44-3 (CLGB) Always Below 1 Ω S44-1 (CLG6) - Body ground Always 10 kΩ or higher S44-3 (CLGB) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

5. CHECK INDOOR ELECTRICAL KEY OSCILLATOR (OPERATION)

   
   

   1. Replace the indoor electrical key oscillator with a new one or normally functioning one Click here.

   2. Check that the entry function operates normally Click here.

      OK
      Operates normally

   
   

   NG

   REPLACE CERTIFICATION ECU

   OK

   END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)