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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Hybrid Battery System - Diagnostic Codes (2 Of 5)) >> HYBRID BATTERY SYSTEM (for PHEV Model) >> DTC P0D0A-15: Hybrid/EV Battery Charging System Positive Contactor Control Circuit Short to Auxiliary Battery or Open [12/2023 - ] >> Procedure

DTC P0D0A-15: Hybrid/EV Battery Charging System Positive Contactor Control Circuit Short to Auxiliary Battery or Open [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 (HYBRID CONTROL) 

    Pre-procedure1

    1. None.

      Procedure1

    2. Check for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      Result

      Result Proceed to
      "P0D0A-15" only is output, or DTCs except the ones in the table below are also output. A
      DTCs of hybrid control system in the table below are output. B
      System Relevant DTC
      Hybrid control system P1BAC-1C Hybrid/EV Battery Charging System Positive/Negative Contactor Enable Circuit Circuit Voltage Out of Range

      Post-procedure1

    3. Turn the ignition switch off.

    Result: 

    B 

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

    Result: 

    A 

    See step  2

  2. READ VALUE USING GTS (AC CHARGING POSITIVE RELAY STATUS) 

    Pre-procedure1

    1. None.

      Procedure1

    2. Read the Data List.

      Powertrain > HV Battery > Data List 

      Tester Display
      AC Charging Positive Relay Status

      Standard

      Tester Display Condition Specified Condition
      AC Charging Positive Relay Status Ignition switch ON OFF

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    3. Turn the ignition switch off.

    Result: 

    NG 

    See step  5

    Result: 

    OK 

    See step  3

  3. CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY) 

    See step  1

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    CONNECT SECURELY 

    Result: 

    OK 

    See step  4

  4. CHECK CONNECTOR CONNECTION CONDITION (NO. 2 TRACTION BATTERY DEVICE BOX ASSEMBLY) 

    See step  3

    Result

    Proceed to
    OK
    NG

    Result: 

    OK 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [12/2023 - ] 

    Result: 

    NG 

    CONNECT SECURELY 

  5. CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY) 

    See step  1

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    CONNECT SECURELY 

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (CHRB VOLTAGE) 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.

    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 repair Service Information because this may cause a malfunction.

    2. Connect the SST.

      HINT: 

      Refer to Instructions for Connecting SST [12/2023 - ]

    3. Disconnect the battery ECU assembly connector.
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

      GTY1231486Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Connect the cable to the negative (-) auxiliary battery terminal.
    5. Turn the ignition switch to ON.

      Procedure1

    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      j4-8 (CHRB) - Body ground Ignition switch ON Below 1 V
      NOTE:
      • Turning the ignition switch to ON with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.
      • If the ignition switch is turned to ON with the connectors disconnected, other DTCs will be stored. Be sure to clear the DTCs after the inspection.
      GTY1231754Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery ECU Assembly)

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    7. Turn the ignition switch off.
    8. Disconnect the cable from the negative (-) auxiliary battery terminal.
    9. Reconnect the battery ECU assembly connector.
    10. Disconnect the SST.

    Result: 

    OK 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (BATTERY ECU ASSEMBLY - BODY GROUND) 

    See step  2

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    See step  10

    Result: 

    OK 

    See step  8

  8. CHECK CONNECTOR CONNECTION CONDITION (NO. 2 TRACTION BATTERY DEVICE BOX ASSEMBLY) 

    See step  3

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    CONNECT SECURELY 

    Result: 

    OK 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES) 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.

    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 repair Service Information because this may cause a malfunction.

    2. Connect the SST.

      HINT: 

      Refer to Instructions for Connecting SST [12/2023 - ]

    3. Disconnect the battery ECU assembly connector.
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

      GTY1231486Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disconnect the No. 2 traction battery device box assembly connector.
      GTY1238853Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

      Procedure1

    5. Measure the resistance according to the value(s) in the tables below.
      GTY1240502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 Traction Battery Device Box Assembly)
      *b Front view of wire harness connector
      (to Battery ECU Assembly)

      Standard Resistance (Check for Open)

      Tester Connection Condition Specified Condition
      j14-1 (CHRB) - j4-8 (CHRB) Ignition switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Condition Specified Condition
      j14-1 (CHRB) and j4-8 (CHRB) - Body ground and other terminals Ignition switch off 10 kΩ or higher
    6. Connect the cable to the negative (-) auxiliary battery terminal.
    7. Turn the ignition switch to ON.
    8. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      j14-1 (CHRB) or j4-8 (CHRB) - Body ground Ignition switch ON Below 1 V
      NOTE:
      • Turning the ignition switch to ON with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.
      • If the ignition switch is turned to ON with the connectors disconnected, other DTCs will be stored. Be sure to clear the DTCs after the inspection.

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    9. Turn the ignition switch off.
    10. Disconnect the cable from the negative (-) auxiliary battery terminal.
    11. Reconnect the No. 2 traction battery device box assembly connector.
    12. Reconnect the battery ECU assembly connector.
    13. Disconnect the SST.

    Result: 

    OK 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  10. CHECK CONNECTOR CONNECTION CONDITION (NO. 2 TRACTION BATTERY DEVICE BOX ASSEMBLY) 

    See step  3

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    CONNECT SECURELY 

    Result: 

    OK 

    See step  11

  11. CHECK HARNESS AND CONNECTOR (BATTERY ECU ASSEMBLY - NO. 2 TRACTION BATTERY DEVICE BOX ASSEMBLY) 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.

    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 repair Service Information because this may cause a malfunction.

    2. Disconnect the battery ECU assembly connector.
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

      GTY1231486Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the No. 2 traction battery device box assembly connector.
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

      GTY1238853Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Procedure1

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

      Standard Resistance (Check for Open)

      Tester Connection Condition Specified Condition
      j14-1 (CHRB) - j4-8 (CHRB) Ignition switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Condition Specified Condition
      j14-1 (CHRB) and j4-8 (CHRB) - Body ground and other terminals Ignition switch off 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    5. Reconnect the No. 2 traction battery device box assembly connector.
    6. Reconnect the battery ECU assembly connector.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  12

  12. CHECK HARNESS AND CONNECTOR (NO. 2 TRACTION BATTERY DEVICE BOX ASSEMBLY - BODY GROUND) 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.

    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 repair Service Information because this may cause a malfunction.

    2. Disconnect the No. 2 traction battery device box assembly connector.
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

      GTY1238853Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Procedure1

    3. Measure the resistance according to the value(s) in the tables below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      j14-2 (GND) - Body ground Ignition switch off Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. Reconnect the No. 2 traction battery device box assembly connector.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  13

  13. INSPECT NO. 2 TRACTION BATTERY DEVICE BOX ASSEMBLY (CHRB) 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.

    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 repair Service Information because this may cause a malfunction.

    2. Disconnect the No. 2 traction battery device box assembly connector.
      GTY1238853Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

      Procedure1

    3. Measure the resistance according to the value(s) in the table below.
      GTY1233762Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (No. 2 Traction Battery Device Box Assembly)      		 - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      j14-1 (CHRB) - j14-2 (GND) -40 to 80°C (-40 to 176°F) 20.6 to 40.8 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. Reconnect the No. 2 traction battery device box assembly connector.

    Result: 

    OK 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [12/2023 - ] 

    Result: 

    NG 

    REPLACE NO. 2 TRACTION BATTERY DEVICE BOX ASSEMBLY. Refer to  REMOVAL [12/2023 - ] 

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