PARKING ASSIST MONITOR SYSTEM A Luggage Compartment Door Open Warning Message is Displayed even after Luggage Compartment Door is Closed

DESCRIPTION

• The parking assist ECU receives luggage compartment door lock assembly open/close signals from the main body ECU RH through the network gateway ECU.

  Tech Tips

  The luggage compartment door lock assembly is connected to the main body ECU RH by the vehicle wire harness.

• When the luggage compartment door is open, the rear television camera optical axis cannot be adjusted correctly because the rear television camera assembly is installed on the luggage compartment door. Therefore, the rear television camera optical axis adjustment cannot be completed while the luggage compartment door is open. If adjustment is attempted, a luggage compartment door open warning message will be displayed and the adjustment will be canceled.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING INTELLIGENT TESTER

   
   

   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 / Body / Data List.

   5. Check the Data List for proper functioning of the following item.

      Body (Main Body ECU)

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Luggage Courtesy SW	Luggage compartment door courtesy switch signal/ON or OFF	ON: Luggage compartment door open OFF: Luggage compartment door closed	-

      OK
      The luggage compartment door courtesy switch functions as specified in the normal condition column.

   
   

   NG

   CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - LUGGAGE COMPARTMENT DOOR LOCK) Click here

   OK

   REPLACE PARKING ASSIST ECU Click here

2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - LUGGAGE COMPARTMENT DOOR LOCK)

   
   

   1. Disconnect the J75 connector from the main body ECU RH (cowl side junction block RH).

   2. Disconnect the Q42 connector from the luggage compartment door lock assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition J75-25 (LGCY) - Body ground Always 10 kΩ or higher Q42-2 (E) - Body ground Always Below 1 Ω J75-25 (LGCY) - Q42-3 (D+) Always Below 1 Ω

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

3. INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

   
   
   1. 

      Text in Illustration

      *1	Component without harness connected (Luggage Compartment Door Lock Assembly)
      *2	Lock
      *3	Unlock

      Remove the luggage compartment door lock assembly.

   2. Check the operation of the door lock motor.

      
      

      1. Move the door lock to the lock position.

      2. Apply battery voltage to the door lock motor and check the operation of the door lock motor.

         Connection	Result
         Battery positive (+) → 1 (B) Battery negative (-) → 2 (E)	Unlocks

   3. Check operation of the door courtesy switch.

      
      

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

         Standard Resistance
         Measurement Condition Condition Specified Condition 2 (E) - 3 (D+) Locked 10 kΩ or higher Unlocked Below 1 Ω

   
   

   NG

   REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY Click here

   OK

   REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH)