Key Luggage Compartment Lock-In Prevention Function Does Not Operate

DOOR LOCK: SMART KEY SYSTEM: Key Luggage Compartment Lock-in Prevention Function does not Operate

Key Luggage Compartment Lock-in Prevention Function does not Operate

DESCRIPTION

With the key inside the luggage compartment, press the back door opener switch. The certification ECU uses the back door oscillators (outer and inner) to output a request signal. The back door outer oscillator cannot verify an ID code in this situation. The key receives the request and transmits its ID code to the antenna. The ID code is then sent to the certification ECU through the back door inner oscillator in order to be confirmed by the certification ECU. If the ID code is verified, the certification ECU sends a back door open signal to the driver side junction block (main body ECU) using the multiplex communication line and stops outputting request signals. The back door then can be opened.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK BACK DOOR ENTRY UNLOCK FUNCTION OPERATES
(a) Check that the back door entry unlock function operates normally.
OK:
Back door entry unlock function operates normally.
NG -- GO TO PROBLEM SYMPTOMS TABLE
OK -- Continue to next step.

2. CHECK WIRE HARNESS (LUGGAGE ELECTRICAL KEY OSCILLATOR (INNER) - BATTERY AND BODY GROUND)




(a) Disconnect the L6 connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage:





(c) Measure the resistance of the wire harness side connector.
Standard resistance:






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

3. PERFORM ACTIVE TEST USING TECHSTREAM (LUGGAGE ELECTRICAL KEY OSCILLATOR (INNER))
(a) Select the Active Test, use the Techstream to generate a control command, and then check that the oscillator (inner) operates.

Certification ECU





OK:
ON (key is in luggage room) appears on the screen.
NG -- REPLACE LUGGAGE ELECTRICAL KEY OSCILLATOR (INNER)
OK -- Continue to next step.

4. CHECK WIRE HARNESS (CERTIFICATION ECU - LUGGAGE ELECTRICAL KEY OSCILLATOR (INNER))




(a) Disconnect the S11 ECU connector.
(b) Disconnect the L6 oscillator connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE CERTIFICATION ECU