Entry And Start System Key Luggage Compartment Lock-In Prevention Function Does Not Operate

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ENTRY AND START SYSTEM (ENTRY LUGGAGE COMPARTMENT OPEN FUNCTION)

CHECK WAVE ENVIRONMENT

PERFORM KEY DIAGNOSTIC MODE INSPECTION

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

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER)

CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - ELECTRICAL KEY ANTENNA)

REPLACE INDOOR ELECTRICAL KEY OSCILLATOR (for Luggage Compartment)

CHECK INDOOR ELECTRICAL KEY OSCILLATOR (OPERATION)

REPLACE ELECTRICAL KEY ANTENNA

CHECK ELECTRICAL KEY ANTENNA (OPERATION)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

The entry and start system (for entry function) uses a multiplex communication system (LIN communication system) and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (CAMRY_ACV40 RM000000XU707QX.html). Troubleshoot the entry and start system (for entry function) after confirming that the communication system is functioning properly.

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

   Result:

   Result	Proceed to
   Entry luggage compartment door open function operates	A
   Entry luggage compartment door open function does not operate	B

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.
   

   NOTICE:

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

   HINT:

   1. 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.
      
   2. 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.
      

   Result:

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

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

   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 / Utility / Key Communication Check / Overhead + Luggage (inside)
      

   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.
      

      HINT:

      1. Place the key on the luggage area.
         
      2. If the buzzer sounds, it can be determined that the indoor electrical key oscillators are operating normally.
         

      OK:

      Wireless door lock buzzer sounds
      

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

2. Disconnect the indoor electrical key oscillator (for luggage compartment) connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   E74-16 (CG7B) - N32-3 (CLGB)	Always	Below 1 Ω
   E74-15 (CLG7) - N32-1 (CLG6)	Always	Below 1 Ω
   E74-16 (CG7B) - Body ground	Always	10 kΩ or higher
   E74-15 (CLG7) - Body ground	Always	10 kΩ or higher

   Result:

   Result	Proceed to
   OK (w/ Electrical Key Antenna)	A
   OK (w/o Electrical Key Antenna)	B
   NG	C

1. Disconnect the door control receiver connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   E74-37 (ASEL) - O27-4 (ASEL)	Always	Below 1 Ω
   E74-37 (ASEL) - Body ground	Always	10 kΩ or higher

1. Disconnect the electrical key antenna connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   O27-7 (ANT) - O29-1 (ANT)	Always	Below 1 Ω
   O27-7 (ANT) - Body ground	Always	10 kΩ or higher

1. Replace the indoor electrical key oscillator (for luggage compartment) (CAMRY_ACV40 RM000001LTT00CX.html).
   

1. Check that the entry functions operate normally (CAMRY_ACV40 RM000002U9W010X.html).
   

   OK:

   Entry function operates normally.
   

   Result:

   Result	Proceed to
   NG (w/ Electrical Key Antenna)	A
   NG (w/o Electrical Key Antenna)	B
   OK	C

1. Replace the electrical key antenna (CAMRY_ACV40 RM000003EGJ006X.html).
   

1. Check that the entry functions operate normally (CAMRY_ACV40 RM000002U9W010X.html).
   

   OK:

   Entry function operates normally.