Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment: Procedure

Fig 1: Identifying Luggage Door Opening Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. 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: Go to next step 

1. Check that the manual luggage compartment door opener function operates normally.

   OK

   Manual luggage compartment door opener function operates normally.

NG → GO TO  LUGGAGE COMPARTMENT DOOR OPENER SYSTEM  LUGGAGE COMPARTMENT DOOR OPENER SYSTEM 

OK: Go to next step 

1. Check that the wireless luggage compartment door opener function operates normally.

   OK

   Wireless luggage compartment door opener function operates normally

NG → GO TO  WIRELESS DOOR LOCK CONTROL SYSTEM  WIRELESS DOOR LOCK CONTROL FUNCTION 

OK: Go to next step 

1. After replacing the key with a normally functioning one, check that the wireless luggage compartment door opener function operates normally.

   OK

   Wireless luggage compartment door opener function operates normally.

OK → END (KEY IS DEFECTIVE) 

NG: Go to next step 

1. Select the ACTIVE TEST, use the Techstream to generate a control command, and then check that the antenna (for outer) operates.
   CERTIFICATION ECU:
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Outside Trunk/Back Door Transmitter	Luggage compartment door outer antenna	ON / OFF	-

   OK

   When key is brought close to luggage compartment door, antenna (for outer) is turned OFF and indicator on key illuminates.

NG → See step   8 

OK: Go to next step 

1. Check the DATA LIST for proper functioning of the door lock switch.
   CERTIFICATION ECU:
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Luggage Door Lock/Unlock Switch	Luggage compartment door lock / unlock switch / ON or OFF	ON: Luggage compartment door lock switch is pushed OFF: Luggage compartment door lock switch is not pushed	-

   OK

   ON (luggage compartment door lock is pushed) appears on the screen.

NG → REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY 

OK: Go to next step 

1. After replacing the certification ECU with a normal one, check that the entry luggage compartment door lock functions operates normally.

   OK

   Entry luggage compartment door lock function operates normally.

NG → REPLACE MAIN BODY ECU LH 

OK → END (CERTIFICATION ECU IS DEFECTIVE) 

Fig 2: Identifying U28 ECU And U32 Antenna Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the U28 ECU connector.
2. Disconnect the U32 antenna connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance

   Tester Connection	Specified Condition
   U28-31 (CLG8) - U32-1 (CLG5)	Below 1 Ω
   U28-32 (CG8B) - U32-2 (CLGB)	Below 1 Ω
   U28-31 (CLG8) or U32-1 (CLG5) - Body ground	10 kΩ or higher
   U28-32 (CG8B) or U32-2 (CLGB) - Body ground	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. After replacing the luggage electrical key antenna (for outer) with a normal one, check that the luggage entry unlock functions operates normally.

   OK

   Luggage entry unlock function operates normally.

OK → END (LUGGAGE ELECTRICAL KEY ANTENNA IS DEFECTIVE [for Outer]) 

NG → REPLACE CERTIFICATION ECU