LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Luggage Compartment Door Opener System (Except Hybrid) - Diagnostics & Symptom Tests) >> LUGGAGE COMPARTMENT DOOR OPENER SYSTEM (for Gasoline Model) >> Luggage Compartment Door Opener does not Operate [06/2018 - ] >> Procedure

Luggage Compartment Door Opener does not Operate [06/2018 - ]: Procedure

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK POWER DOOR LOCK CONTROL SYSTEM 
    1. Check power door lock control system operation.

      Refer to OPERATION CHECK [06/2018 - ]

      OK

      Power door lock control system is normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

    Result: 

    OK 

    See step  2

  2. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM 
    1. Check wireless door lock control system operation.

      Refer to OPERATION CHECK [06/2018 - ]

      OK

      Wireless door lock control system is normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

    Result: 

    OK 

    See step  3

  3. PERFORM ACTIVE TEST USING TECHSTREAM (TRUNK AND BACK-DOOR OPEN) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Main Body / Active Test.
    5. Perform the Active Test according to the display on the Techstream.

      Body Electrical > Main Body > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Trunk and Back-Door Open Operate luggage compartment door lock assembly latch release OFF or ON -

      Body Electrical > Main Body > Active Test 

      Tester Display
      Trunk and Back-Door Open

      OK

      Luggage compartment door lock assembly latch release motor operates normally.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  10

    Result: 

    OK 

    See step  4

  4. READ VALUE USING TECHSTREAM (TRUNK/BDOOR OPEN SW, TRUNK MAIN SW, LUGGAGE COURTESY SW) 
    1. Enter the following menus: Body Electrical / Main Body / Data List.
    2. Read the Data List according to the display on the Techstream.

      Body Electrical > Main Body > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Trunk/BDoor Open SW Luggage compartment door opening switch signal OFF or ON OFF: Luggage compartment door opening switch off
      ON: Luggage compartment door opening switch on      		 -
      Trunk Main SW Luggage door opening cancel switch signal OFF or ON OFF: Luggage door opening cancel switch off
      ON: Luggage door opening cancel switch on      		 -
      Luggage Courtesy SW Luggage compartment door courtesy light switch signal OFF or ON OFF: Luggage compartment door courtesy light switch off
      ON: Luggage compartment door courtesy light switch on      		 -

      Body Electrical > Main Body > Data List 

      Tester Display
      Trunk/BDoor Open SW
      Trunk Main SW
      Luggage Courtesy SW

      OK

      The Techstream display changes correctly in response to the ON/OFF operation of the luggage compartment door opening switch or luggage compartment door courtesy light switch.

      Result

      Result Proceed to
      OK A
      NG (Trunk/BDoor Open SW) B
      NG (Trunk Main SW) C
      NG (Luggage Courtesy SW) D

    Result: 

    B 

    See step  6

    Result: 

    C 

    See step  8

    Result: 

    D 

    GO TO LIGHTING SYSTEM. Refer to  PROBLEM SYMPTOMS TABLE [06/2018 - ] 

    Result: 

    A 

    See step  5

  5. READ VALUE USING TECHSTREAM (TR/B-DOOR UNLOCK SW) 
    1. Enter the following menus: Body Electrical / Smart Access / Data List.
    2. Read the Data List according to the display on the Techstream.

      Body Electrical > Smart Access > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Tr/B-Door Unlock SW Luggage electrical key switch OFF or ON OFF: Luggage electrical key switch not pressed
      ON: Luggage electrical key switch pressed      		 When this item is abnormal, there is a malfunction in the luggage electrical key switch or related parts.

      OK

      The Techstream display changes correctly in response to the operation of the luggage electrical key switch.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    GO TO SMART ACCESS SYSTEM (for Entry Function). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

  6. INSPECT TRUNK AND FUEL SWITCH ASSEMBLY (LUGGAGE COMPARTMENT DOOR OPENING SWITCH) 
    1. Remove the trunk and fuel switch assembly (luggage compartment door opening switch).

      Refer to REMOVAL [06/2018 - ]

    2. Inspect the trunk and fuel switch assembly (luggage compartment door opening switch).

      Refer to INSPECTION [06/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE TRUNK AND FUEL SWITCH ASSEMBLY (LUGGAGE COMPARTMENT DOOR OPENING SWITCH). Refer to  REMOVAL [06/2018 - ] 

    Result: 

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - TRUNK AND FUEL SWITCH ASSEMBLY AND BODY GROUND) 
    1. Disconnect the G38 main body ECU (multiplex network body ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G38-4 (TSW) - G30-4 (B) Always Below 1 Ω
      G30-3 (L) - Body ground Always Below 1 Ω
      G38-4 (TSW) or G30-4 (B) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  8. INSPECT TRUNK AND FUEL SWITCH ASSEMBLY (LUGGAGE COMPARTMENT DOOR OPENING SWITCH) 
    1. Remove the trunk and fuel switch assembly (luggage compartment door opening switch).

      Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    2. Inspect the trunk and fuel switch assembly (luggage compartment door opening switch).

      Refer to INSPECTION [06/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE TRUNK AND FUEL SWITCH ASSEMBLY (LUGGAGE COMPARTMENT DOOR OPENING SWITCH). Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    OK 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY AND BODY GROUND) 
    1. Disconnect the G37 main body ECU (multiplex network body ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G37-27 (TMSW) - G61-2 (B) Always Below 1 Ω
      G61-1 (L) - Body ground Always Below 1 Ω
      G37-27 (TMSW) or G61-2 (B) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  10. INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY 
    1. Remove the luggage compartment door lock assembly.

      Refer to REMOVAL [06/2018 - ]

    2. Inspect the luggage compartment door lock assembly.

      Refer to INSPECTION [06/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY. Refer to  REMOVAL [06/2018 - ] 

    Result: 

    OK 

    See step  11

  11. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND) 
    1. Disconnect the 3H instrument panel junction block assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      R17-3 (D+) - 3H-34 Always Below 1 Ω
      R17-1 (B) - 3H-20 Always Below 1 Ω
      R17-2 (E) - Body ground Always Below 1 Ω
      R17-3 (D+) or 3H-34 - Body ground Always 10 kΩ or higher
      R17-1 (B) or 3H-20 - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  12

  12. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Temporarily replace the instrument panel junction block assembly with a new or known good one.

      Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    2. Check that the luggage door opener system is normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

scientia non olet · About LEMON Manuals