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Key Luggage Compartment Lock-in Prevention Function does not Operate: Wiring Diagram

Fig 1: Key Luggage Compartment Lock-In Prevention Function Does Not Operate - Wiring Diagram
G04022000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. CHECK LUGGAGE DOOR OPENING MAIN SWITCH ASSEMBLY 
    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. 

      Fig 2: Identifying Luggage Door Opening Main Switch Assembly
      G04022001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK : END 

      NG : GO TO NEXT STEP 

  2. CHECK MANUAL LUGGAGE COMPARTMENT DOOR OPENER OPERATION 
    1. 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 : GO TO NEXT STEP 

  3. READ VALUE OF INTELLIGENT TESTER (DOOR COURTESY SWITCH) 
    1. Check the DATA LIST for proper functioning of the each door courtesy switches.

      Multiplex network master switch assembly: 

      MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      COURTESY SW Courtesy switch / ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed      		 -

      Multiplex network door ECU front RH: 

      MULTIPLEX NETWORK DOOR ECU FRONT RH

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      COURTESY SW Courtesy switch / ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed      		 -

      Multiplex network door ECU rear LH: 

      MULTIPLEX NETWORK DOOR ECU REAR LH

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      COURTESY SW Courtesy switch / ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed      		 -

      Multiplex network door ECU rear RH: 

      MULTIPLEX NETWORK DOOR ECU REAR RH

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      COURTESY SW Courtesy switch / ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed      		 -

      Multiplex network rear ECU: 

      MULTIPLEX NETWORK REAR ECU

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      LUGG COURTESY SW Luggage compartment door switch / ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed      		 -

      OK : ON (door courtesy switch is pushed) appears on the screen. 

      NG : GO TO LIGHTING SYSTEM 

      OK : GO TO NEXT STEP 

  4. READ VALUE OF INTELLIGENT TESTER (LOCK POSITION SWITCH) 
    1. Check the DATA LIST for proper functioning of the door lock position switch.

      Multiplex network master switch assembly: 

      MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      LOCK POS SW Door unlock detection switch signal / ON or OFF ON: Door is unlocked
      OFF: Door is locked      		 -

      Multiplex network door ECU front RH: 

      MULTIPLEX NETWORK DOOR ECU FRONT RH

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      LOCK POS SW Door unlock detection switch signal / ON or OFF ON: Door is unlocked
      OFF: Door is locked      		 -

      Multiplex network door ECU rear LH: 

      MULTIPLEX NETWORK DOOR ECU REAR LH

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      LOCK POS SW Door unlock detection switch signal / ON or OFF ON: Door is unlocked
      OFF: Door is locked      		 -

      Multiplex network door ECU rear RH: 

      MULTIPLEX NETWORK DOOR ECU REAR RH

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      LOCK POS SW Door unlock detection switch signal / ON or OFF ON: Door is unlocked
      OFF: Door is locked      		 -

      OK : ON (Door is unlocked) appears on the screen. 

      NG : GO TO  POWER DOOR LOCK CONTROL SYSTEM  

      OK : GO TO NEXT STEP 

  5. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (LUGGAGE ELECTRICAL KEY ANTENNA (INNER)) 
    1. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check that the antenna (inner) operates.

      Certification ECU: 

      CERTIFICATION ECU - TEST DETAILS

      Item Test Details Diagnostic Note
      IN_BDR TRNSMTTR Luggage compartment door inner antenna ON / OFF -

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

      NG : Go to step   11 

      OK : GO TO NEXT STEP 

  6. CHECK WIRE HARNESS (ENTRY DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND) 
    1. Disconnect the U36 receiver connector.
    2. Measure the voltage and resistance of the wire harness side connectors.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      U36-2 (+5) - Body ground 5 V

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      U36-6 (GND) - Body ground Below 1 Ω
      Fig 3: Identifying U36 Receiver Connector
      G04022002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

      OK : GO TO NEXT STEP 

  7. CHECK WIRE HARNESS (ENTRY DOOR CONTROL RECEIVER - CERTIFICATION ECU ASSEMBLY) 
    1. Disconnect the U36 receiver connector.
    2. Disconnect the U28 ECU connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      U36-3 (DATA) - U28-38 (RDA) Below 1 Ω
      U36-5 (RSSI) - U28-39 (RSSI) Below 1 Ω
      U36-4 (ASEL) - U28-37 (ASEL) Below 1 Ω
      Fig 4: Identifying U36 Receiver Connector And U28 ECU Connector
      G04022003Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

      OK : GO TO NEXT STEP 

  8. CHECK ENTRY DOOR CONTROL RECEIVER 
    1. Measure the frequency of the receiver connector.

      Standard frequency 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      7 (ANT) - 6 (GND) Key is placed near center of luggage compartment and luggage compartment door is closed Above 0 Hz
      Fig 5: Identifying Receiver Connector
      G04022004Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG : REPLACE ENTRY DOOR CONTROL RECEIVER 

      OK : GO TO NEXT STEP 

  9. CHECK LUGGAGE ELECTRICAL KEY ANTENNA (INNER) 
    1. Disconnect the V33 connector.
    2. Measure the voltage and resistance of the wire harness side connectors.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      V33-3 (CLGB) - Body ground 10 to 14 V

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      V33-1 (CLG6) - Body ground Below 1 Ω
      Fig 6: Identifying V33 Connector
      G04022005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG : Go to step   12 

      OK : GO TO NEXT STEP 

  10. READ VALUE OF INTELLIGENT TESTER (POWER LUGGAGE DOOR OPEN SWITCH) 
    1. Check the DATA LIST for proper functioning of the power luggage door open switch.

      Cowl Side Junction Block ECU LH: 

      COWL SIDE JUNCTION BLOCK ECU LH

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      LUGG PUSH SW Power luggage door open switch / ON or OFF ON: Power luggage door open switch is pushed
      OFF: Power luggage door open switch is not pushed      		 -

      OK : ON (power luggage door open switch is pushed) appears on the screen. 

      NG : REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY 

      OK : GO TO NEXT STEP 

  11. CHECK OPERATION OF CERTIFICATION ECU ASSEMBLY 
    1. After replacing the certification ECU assembly 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 COWL SIDE JUNCTION BLOCK LH (COWL SIDE JUNCTION BLOCK ECU LH) 

      OK : END (CERTIFICATION ECU ASSEMBLY IS DEFECTIVE) 

  12. CHECK WIRE HARNESS (ANTENNA - ECU) 
    1. Disconnect the V33 antenna connector.
    2. Disconnect the U28 ECU connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      V33-1 (CLG6) - U28-15 (CLG7) Below 1 Ω
      V33-1 (CLG6) or U28-15 (CLG7) - Body ground 10 kΩ or higher
      V33-3 (CLGB) - U28-16 (CG7B) Below 1 Ω
      V33-3 (CLGB) or U28-16 (CG7B) - Body ground 10 kΩ or higher
      Fig 7: Identifying V33 Antenna Connector And U28 ECU Connector
      G04022006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

      OK : GO TO NEXT STEP 

  13. CHECK OPERATION OF LUGGAGE ELECTRICAL KEY ANTENNA (INNER) 
    1. After replacing the luggage electrical key antenna (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 ASSEMBLY 

      OK : END (LUGGAGE ELECTRICAL KEY ANTENNA (INNER) IS DEFECTIVE) 

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