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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Plug-In Charge Control System - Diagnostic Codes (2 Of 3)) >> PLUG-IN CHARGE CONTROL SYSTEM (for PHEV Model) >> DTC P1BF8-62: Hybrid/EV Battery Charger Coupler Temperature Sensor "A"/"B" Signal Compare Failure [12/2023 - ] >> Procedure

DTC P1BF8-62: Hybrid/EV Battery Charger Coupler Temperature Sensor "A"/"B" Signal Compare Failure [12/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC OUTPUT (PLUG-IN CONTROL) 

    Pre-procedure1

    1. Enter the following menus:

      Powertrain > Plug-in Control > Trouble Codes 

      Procedure1

    2. Check for DTCs.

      Result

      Result Proceed to
      P1BF8-62 only is output, or DTCs except the ones in the table below are also output A
      DTCs of plug-in charge control system in the tables below are output B
      Malfunction Content System Relevant DTC
      Microcomputer malfunction Plug-in charge control system P060B-49 Plug-in Control Module A/D Processing Internal Electronic Failure
      Communication system malfunction P0E5E-87 Plug-in Control Module Processor from Hybrid/EV Battery Charger Control Module Processor Missing Message
      U0155-87 Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message
      U0293-87 Lost Communication with Hybrid/EV Powertrain Control Module Missing Message
      U1150-87 Lost Communication with Hybrid Powertrain Control Module (Hybrid/EV Battery Local Bus) Missing Message
      Sensor and actuator circuit malfunction P0D99-11 Hybrid/EV Battery Charger Coupler Temperature Sensor "A" Circuit Low Circuit Short to Ground
      P0D99-15 Hybrid/EV Battery Charger Coupler Temperature Sensor "A" Circuit High Circuit Short to Auxiliary Battery or Open
      P0EE7-11 Hybrid/EV Battery Charger Coupler Temperature Sensor "B" Circuit Low Circuit Short to Ground
      P0EE7-15 Hybrid/EV Battery Charger Coupler Temperature Sensor "B" Circuit High Circuit Short to Auxiliary Battery or Open

      HINT: 

      • P1BF8-62 may be output as a result of the malfunction indicated by the DTCs above.
        1. The chart above is listed in inspection order of priority.
        2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)

      Post-procedure1

    3. None

    Result: 

    B 

    GO TO DTC CHART (PLUG-IN CHARGE CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2023 - ] 

    Result: 

    A 

    See step  2

  2. CHECK CONNECTOR CONNECTION CONDITION (AC CHARGER INLET CABLE CONNECTOR) 

    Refer to PROCEDURE - Step 4

    Result

    Result Proceed to
    OK A
    NG (The connector is not connected securely) B
    NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector) C

    Result: 

    B 

    CONNECT SECURELY 

    Result: 

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    A 

    See step  3

  3. CHECK CONNECTOR CONNECTION CONDITION (ELECTRIC VEHICLE CHARGER ASSEMBLY CONNECTOR) 

    Refer to PROCEDURE - Step 1

    Result

    Result Proceed to
    OK A
    NG (The connector is not connected securely) B
    NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector) C

    Result: 

    B 

    CONNECT SECURELY 

    Result: 

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    A 

    See step  4

  4. INSPECT AC CHARGER INLET CABLE (INLET AC CHARGING TEMPERATURE SENSOR 1 (POSITIVE SIDE) AND INLET AC CHARGING TEMPERATURE SENSOR 2 (NEGATIVE SIDE)) 

    Refer to INSPECTION [12/2023 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE AC CHARGER INLET CABLE. Refer to  REMOVAL [12/2023 - ] 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (AC CHARGER INLET CABLE - ELECTRIC VEHICLE CHARGER ASSEMBLY) 
    WARNING:

    Be sure to wear insulated gloves.

    Pre-procedure1

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the service information because this may cause a malfunction.

    2. Disconnect the In1 AC charger inlet cable connector.
      NOTE:

      If the In1 connector is disconnected with the auxiliary battery connected, P0D56-15 may be detected. Check that the cable is disconnected from the negative (-) auxiliary battery terminal before proceeding work.

    3. Disconnect the J84 electric vehicle charger assembly connector.

      Procedure1

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

      Standard Resistance (Check for Open)

      Tester Connection Condition Specified Condition
      In1-3 (TIL1) - J84-50 (TIL1) Ignition switch off Below 1 Ω
      In1-4 (GTI1) - J84-49 (GTI1) Ignition switch off Below 1 Ω
      In1-8 (TIL2) - J84-48 (TIL2) Ignition switch off Below 1 Ω
      In1-7 (GTI2) - J84-47 (GTI2) Ignition switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Condition Specified Condition
      In1-3 (TIL1) or J84-50 (TIL1) - Body ground and other terminals Ignition switch off 10 kΩ or higher
      In1-4 (GTI1) or J84-49 (GTI1) - Body ground and other terminals Ignition switch off 10 kΩ or higher
      In1-8 (TIL2) or J84-48 (TIL2) - Body ground and other terminals Ignition switch off 10 kΩ or higher
      In1-7 (GTI2) or J84-47 (GTI2) - Body ground and other terminals Ignition switch off 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    5. Reconnect the electric vehicle charger assembly connector.
    6. Reconnect the AC charger inlet cable connector.

    Result: 

    OK 

    REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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