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 key is locked into the luggage compartment, the closing of the luggage door will cause the multiplex network rear ECU to send a luggage courtesy switch OFF signal to the certification ECU via the BEAN. The certification ECU then sends a request signal through the indoor electrical key antenna (for luggage). The key receives the request signal, and then sends its ID code to the door control receiver. The door control receiver then sends the ID code to the certification ECU, which confirms the ID code. If the ID code is verified, the following occurs: 1) the vehicle exterior warning (wireless door buzzer) sounds for 10 seconds; 2) a trunk open signal is sent to the luggage room junction block ECU via the BEAN; 3) the request signal is stopped; and 4) the multiplex network rear ECU unlocks the luggage door lock.
HINT: *: The key luggage compartment lock-in prevention function does not operate for 100% of the luggage compartment Smart Access System With Push-Button Start.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1.
CHECK LUGGAGE DOOR OPENING MAIN SWITCH
(a) Turn the luggage door opening switch OFF and check that the entry luggage compartment door opener function operates normally.
OK:
Entry luggage compartment door opener function operates normally.
OK -- END
NG -- Continue to next step.
2. CHECK MANUAL LUGGAGE COMPARTMENT DOOR OPENER OPERATION
(a) Check that the manual luggage compartment door operates function operates normally.
OK:
Manual luggage compartment door opener function operates normally.
NG -- GO TO LUGGAGE COMPARTMENT DOOR OPENER SYSTEM
OK -- Continue to next step.
3. READ VALUE USING TECHSTREAM (DOOR COURTESY SWITCH)
(a) Check the DATA LIST for proper functioning of each door courtesy switch.
Main Body ECU RH:
Multiplex Network Rear ECU:
OK:
ON (door courtesy switch is pushed) appears on the screen.
NG -- GO TO LIGHTING SYSTEM
OK -- Continue to next step.
4. READ VALUE USING TECHSTREAM (LOCK POSITION SWITCH)
(a) Check the DATA LIST for proper functioning of the door lock position switch.
Multiplex Network Master Switch:
Multiplex Network Door ECU Front RH:
Multiplex Network Door ECU Rear LH:
Multiplex Network Door ECU Rear RH:
OK:
ON (Door is unlocked) appears on the screen.
NG -- GO TO POWER DOOR LOCK CONTROL SYSTEM
OK -- Continue to next step.
5. PERFORM ACTIVE TEST USING TECHSTREAM (LUGGAGE ELECTRICAL KEY ANTENNA [for Inner])
(a) Select the ACTIVE TEST, use the Techstream to generate a control command, and then check that the antenna (for inner) operates.
Certification ECU:
OK:
When key is brought close to luggage compartment door antenna (for inner) is turned OFF and indicator on key illuminates.
NG -- CHECK OPERATION OF CERTIFICATION ECU
OK -- Continue to next step.
6.
CHECK WIRE HARNESS (DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND)
(a) Disconnect the U36 receiver connector.
(b) Measure the voltage and resistance of the wire harness side connector.
Standard voltage:
Standard resistance
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
7.
CHECK WIRE HARNESS (DOOR CONTROL RECEIVER - CERTIFICATION ECU)
(a) Disconnect the U36 receiver connector.
(b) Disconnect the U28 ECU connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
8.
CHECK DOOR CONTROL RECEIVER
(a) Measure the frequency of the receiver connector.
Standard frequency:
NG -- REPLACE DOOR CONTROL RECEIVER
OK -- Continue to next step.
9.
CHECK LUGGAGE ELECTRICAL KEY ANTENNA (for Inner)
(a) Disconnect the V33 connector.
(b) Measure the voltage and resistance of the wire harness side connectors.
Standard voltage:
Standard resistance:
NG -- CHECK WIRE HARNESS (ANTENNA - ECU)
OK -- Continue to next step.
10. READ VALUE USING TECHSTREAM (POWER LUGGAGE DOOR OPEN SWITCH)
(a) Check the DATA LIST for proper functioning of the power luggage door open switch.
Cowl Side Junction Block ECU LH:
OK:
ON (power luggage door open switch is pushed) appears on the screen.
NG -- REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY
OK -- Continue to next step.
11. CHECK OPERATION OF CERTIFICATION ECU
(a) After replacing the certification ECU with a normal one, check that the key luggage lock-in prevention function operates normally.
OK:
Key luggage lock-in prevention function operates normally.
NG -- REPLACE MAIN BODY ECU LH
OK -- END (CERTIFICATION ECU IS DEFECTIVE)
12.
CHECK WIRE HARNESS (ANTENNA - ECU)
(a) Disconnect the V33 antenna connector.
(b) Disconnect the U28 ECU connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
13. CHECK OPERATION OF LUGGAGE ELECTRICAL KEY ANTENNA (for Inner)
(a) After replacing the luggage electrical key antenna (for inner) with a normal one, check that the key luggage lock-in prevention function operates normally.
OK:
Key luggage lock-in prevention function operates normally.
NG -- REPLACE CERTIFICATION ECU
OK -- END (LUGGAGE ELECTRICAL KEY ANTENNA IS DEFECTIVE [for INNER])