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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 180 (Meter / Gauge System (Except Hybrid) - Diagnostic Codes (1 Of 2)) >> METER / GAUGE SYSTEM (for Gasoline Model) >> DTC B1326-87: Lost Communication with Clock Device (Local-CAN) Missing Message [08/2021 - 09/2022] >> Procedure

DTC B1326-87: Lost Communication with Clock Device (Local-CAN) Missing Message [08/2021 - 09/2022]: 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. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Navigation System A
      w/o Navigation System B

    Result: 

    See step  4

    Result: 

    See step  2

  2. CHECK FOR DTC (NAVIGATION SYSTEM) 
    1. Check if navigation system DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    Result: 

    GO TO NAVIGATION SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2021 - 09/2022] 

    Result: 

    See step  3

  3. CHECK FOR DTC (COMBINATION METER ASSEMBLY) 
    1. Disconnect the G3 radio receiver assembly connector.
    2. Check if combination meter system DTCs are output.

      Body Electrical > Combination Meter > Trouble Codes 

      HINT: 

      If DTC 132187 is output by the meter and gauge system, it can be judged that the radio receiver assembly could perform local bus communication line diagnosis, therefore the meter and gauge system may not be malfunctioning.

      Result

      Result Proceed to
      DTC B132187 is not output A
      DTC B132187 is output B

    Result: 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2021 - ] 

    Result: 

    See step  6

  4. CHECK FOR DTC (AUDIO AND VISUAL SYSTEM) 
    1. Check if audio and visual system DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    Result: 

    GO TO AUDIO AND VISUAL SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2021 - 09/2022] 

    Result: 

    See step  5

  5. CHECK FOR DTC (COMBINATION METER ASSEMBLY) 
    1. Disconnect the G4 radio receiver assembly connector.
    2. Check if combination meter system DTCs are output.

      Body Electrical > Combination Meter > Trouble Codes 

      HINT: 

      If DTC 132187 is output by the meter and gauge system, it can be judged that the radio receiver assembly could perform local bus communication line diagnosis, therefore the meter and gauge system may not be malfunctioning.

      Result

      Result Proceed to
      DTC B132187 is not output A
      DTC B132187 is output B

    Result: 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2021 - ] 

    Result: 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - COMBINATION METER ASSEMBLY) 
    1. Disconnect the G141 clock assembly connector.
    2. Disconnect the G17 combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G141-4 (TX+1) - G17-8 (TX+) Always Below 1 Ω
      G141-5 (TX-1) - G17-7 (TX-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (POWER SOURCE - CLOCK ASSEMBLY) 
    1. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      G141-1 (B) - Body ground Always 11 to 14 V
      G141-2 (ACC) - Body ground Engine switch on (ACC) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G141-6 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CLOCK ASSEMBLY. Refer to  REMOVAL [08/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR