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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Plug-In Charge Control System - Diagnostic Codes (3 Of 3) & Symptom Tests) >> PLUG-IN CHARGE CONTROL SYSTEM (for PHEV Model) >> DTC P1CCD-96: Sub DC/DC Converter (for Charging) Component Internal Failure [12/2023 - ] >> Procedure

DTC P1CCD-96: Sub DC/DC Converter (for Charging) Component Internal 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
      P1CCD-96 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 P0606-49 Plug-in Control Module Internal Electronic Failure
      P060B-49 Plug-in Control Module A/D Processing Internal Electronic Failure
      P0E5E-49 Hybrid/EV Battery Charger Control Module Internal Electronic Failure
      P0E5E-87 Plug-in Control Module Processor from Hybrid/EV Battery Charger Control Module Processor Missing Message
      Power source circuit malfunction P1CED-1C Plug-in Control ECU Power Supply (Plus) Circuit Voltage Out of Range
      P1CF0-1C Plug-in Control ECU Power Supply (Minus) Circuit Voltage Out of Range
      P1CF3-1C Plug-in Control ECU Power Supply (Offset) Circuit Voltage Out of Range
      P3194-14 Internal Control Module Circuit Short to Ground or Open
      Communication system malfunction U1150-87 Lost Communication with Hybrid Powertrain Control Module (Hybrid/EV Battery Local Bus) Missing Message

      HINT: 

      • P1CCD-96 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: 

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

    Result: 

    See step  2

  2. CHECK FUSE (AMD) 

    Pre-procedure1

    1. None

      Procedure1

    2. Check the AMD fuse for improper installation.

      OK

      The fuse is installed securely.

      Pre-procedure2

    3. Remove the AMD fuse from the No. 1 luggage room relay block and No. 1 junction block assembly.

      Procedure2

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      AMD fuse terminals Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    5. Install the AMD fuse.

    Result: 

    NG 

    REPAIR OR REPLACE MALFUNCTIONING PARTS 

    Result: 

    OK 

    See step  3

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

      Procedure1

    2. Check the connector connection for the J85 electric vehicle charger assembly connector.
      GTY1229918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check the contact pressure of each terminal of the J85 electric vehicle charger assembly connector and check for foreign matter or arc marks on the terminals.

      HINT: 

      Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [09/2023 - ]

      Result

      Result Proceed to
      The terminals are connected securely and there are no contact problems There is neither foreign matter nor ark marks A
      The terminals are not connected securely and there is a contact problem There is any of foreign matter or ark marks B
      The terminals are not connected securely and there is a contact problem There is neither foreign matter nor ark marks C
      The terminals are connected securely and there are no contact problems There is any of foreign matter or ark marks B

      Post-procedure1

    4. None

    Result: 

    REPLACE MALFUNCTIONING PARTS 

    Result: 

    CONNECT SECURELY 

    Result: 

    See step  4

  4. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY (AMD2 TERMINAL VOLTAGE) 
    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. Connect the cable to the negative (-) auxiliary battery terminal.
    3. Disconnect the J85 electric vehicle charger assembly connector.

      Procedure1

    4. Measure the voltage according to the value(s) in the table below.
      GTY1233916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Electric Vehicle Charger Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      J85-1 (AMD2) - Body ground Always 11 to 14 V

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    5. Reconnect the electric vehicle charger assembly connector.
    6. Disconnect the cable from the negative (-) auxiliary battery terminal.

    Result: 

    OK 

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

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR