Key Luggage Compartment Lock-In Prevention Function Does Not Operate

DOOR LOCK: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: Key Luggage Compartment Lock-in Prevention Function does not Operate
- 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 room) and electrical key transmitter cannot be performed; or 2) a malfunction in the certification ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START

(a) Check that the entry luggage compartment open function operates.





B -- GO TO DTC OF OTHER COMPONENTS
A -- Continue to next step.

2. CHECK WAVE ENVIRONMENT

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

NOTICE:
If the key is brought within 0.2 m (0.6 ft.)of the indoor electrical key oscillator, communication is not possible.

HINT
* When the electrical key transmitter is brought near the indoor electrical key oscillator (for luggage room), 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.






B -- AFFECTED BY WAVE INTERFERENCE
A -- Continue to next step.

3. KEY DIAGNOSTIC MODE

(a) Diagnostic mode inspection (luggage room inside oscillator)





(1) Connect the Techstream to the DLC3.

(2) Turn the engine switch on (IG).

(3) Turn the Techstream on.

(4) Enter the following menus: Body Electrical / Smart Access / Smart 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.

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

OK:

Wireless door lock buzzer sounds

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

OK -- REPLACE CERTIFICATION ECU

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





(a) Disconnect the S44 oscillator connector.

(b) Disconnect the L15 ECU connector.

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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. CHECK INDOOR ELECTRICAL KEY OSCILLATOR (OPERATION)

(a) Replace the indoor electrical key oscillator with a new one or normally functioning one Removal.

(b) Check that the entry function operates normally.

OK:

Operates normally

NG -- REPLACE CERTIFICATION ECU

OK -- END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

6. GO TO DTC OF OTHER COMPONENTS Luggage Compartment Door Entry Unlock Function Does Not Operate When Key Is Outside Luggage Compartment

7. AFFECTED BY WAVE INTERFERENCE

8. REPLACE CERTIFICATION ECU

9. REPAIR OR REPLACE HARNESS OR CONNECTOR

10. END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

11. REPLACE CERTIFICATION ECU