SOLAR CHARGING SYSTEM, Diagnostic DTC:P1EDC96

DTC Code DTC Name
P1EDC96 Solar Charge Hybrid Battery DC/DC Converter Component Internal Failure

DESCRIPTION

Refer to the description for DTC P1EA412.

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The HV battery DC/DC converter built into the solar energy control unit boosts the solar battery voltage to that of the HV battery and charges the HV battery via the CHR relay.

The difference between the target input value of the HV battery DC/DC converter and the power input value calculated from the input voltage and input current of the HV battery DC/DC converter is large.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P1EDC96 Solar Charge Hybrid Battery DC/DC Converter Component Internal Failure

The difference between the target input value of the HV battery DC/DC converter and the power input value calculated from the input voltage and input current of the HV battery DC/DC converter is large

(1 trip detection logic)

  • Solar battery

  • Solar energy control unit

  • Wire harness or connector

Solar Charging Warning Light:

Comes on
Related Data List
DTC No. Data List
P1EDC96

  • Solar Charge Hybrid Battery DC/DC Converter Input Power

  • Solar Charge Hybrid Battery DC/DC Converter Input Voltage

  • Hybrid Battery Voltage

CONFIRMATION DRIVING PATTERN

Tech Tips

After completing repairs, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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  1. Park the vehicle in an area where the solar radiation will be steady.

    Weather Clear or mostly clear and sunny
    Time Between 11:00 and 14:00
    Place An area where sunlight strikes the solar roof directly

    Tech Tips


    • Make sure no part of the solar roof is shaded.

    • If the solar roof is dirty, clean it.

  2. Turn the power switch off and then disconnect the cable from the negative (-) auxiliary battery terminal.

  3. Wait for 5 seconds or more, then disconnect the power source connector and then all other low voltage connectors the solar energy control unit.

  4. Wait for 30 seconds or more, then connect the low voltage connectors of the solar energy control unit except the power source connector and then connect the power source connector.

  5. Connect the cable to the negative (-) auxiliary battery terminal.

  6. Turn the power switch on (IG), wait for 5 to 10 seconds, and then turn the power switch off.

    Tech Tips

    Make sure to turn the power switch off within 10 seconds.

  7. Wait for 20 minutes and then check for DTCs to check that no DTCs have been stored.

    Tech Tips


    • While waiting, the HV battery will be charged by the solar charging system. However, depending on certain conditions, charging may not be performed.

    • If the SOC of the HV battery is 90% or more, the HV battery will not be charged by the solar charging system.

    • If any of the following conditions is met, the HV battery will not be charged by the solar charging system:


      • The HV battery is charged via an external power source.

      • The power switch is on (ACC).

      • The power switch is on (IG).

      • The power switch is on (READY).

      • The HV battery heating system is operating.

      • The remote air conditioning system is operating.

CAUTION / NOTICE / HINT

CAUTION:


  • B006HUP

    Before performing any of the following operations, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip.


    • Inspecting the high-voltage system.

    • Disconnecting the low voltage connector of the inverter with converter assembly.

    • Disconnecting the low voltage connector of the HV battery.

    • Disconnecting the low voltage connector of the electric vehicle charger assembly.

    • Disconnecting the low voltage connector of the solar energy control unit.

  • B006IQP

    To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.

  • B006HQC

    After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

  • B006IVPC02
    *a Without waiting for 10 minutes

    After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.

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    Tech Tips

    Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Note

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control, HV Battery, Plug-in Control / Trouble Codes.

    4. Check for DTCs.


      Powertrain > Hybrid Control > Trouble Codes
      Powertrain > HV Battery > Trouble Codes
      Powertrain > Plug-in Control > Trouble Codes
      Result
      Result Result
      No DTCs are output. A
      DTCs are output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART

    A

  2. CHECK DTC OUTPUT (SOLAR CHARGING CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Solar Charging Control / Trouble Codes.

    4. Check for DTCs.


      Powertrain > Solar Charging Control > Trouble Codes
      Result
      Result Proceed to
      Only DTC P1EDC96 is output, or DTCs other than in the table below are also output. A
      Any of the DTCs in the table below are output. B
      Relevant DTC
      P1ECF87 Lost Communication with Internal Control Module Solar Charger Battery Monitor Missing Message
      P1ED462 Solar Charging Battery Voltage Sensor Signal Compare Failure
      P1EDD13 Solar Charging Battery Voltage Sensor "A" Circuit Open
      P1EE213 Solar Charging Battery Voltage Sensor "B" Circuit Open
      P1EE713 Solar Charging Battery Voltage Sensor "C" Circuit Open

    5. Turn the power switch off.


    B

    GO TO DTC CHART (SOLAR CHARGING CONTROL) Click here

    A

  3. CHECK CONNECTOR CONNECTION CONDITION (SOLAR ENERGY CONTROL UNIT)

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

    CAUTION:

    Be sure to wear insulated gloves.


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

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the rear seat cushion assembly LH.

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    3. B006J45

      Check the connection condition of the solar energy control unit connectors and the contact pressure of each terminal. Check the terminals for deformation, and check each connector for water ingress and foreign matter.

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      OK
      - Each connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in each connector.
      Result
      Result Proceed to
      OK A
      NG (A connector is not connected securely. ) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in a connector.) C

    4. Install the rear seat cushion assembly LH.


    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  4. CHECK CONNECTOR CONNECTION CONDITION (SOLAR BATTERY)

    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

    CAUTION:

    Be sure to wear insulated gloves.


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

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 1 solar battery shield panel.

      Click here

    3. B006HUC

      Check the connection condition of the solar battery connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

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      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      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

    4. Install the No. 1 solar battery shield panel.


    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  5. CHECK HARNESS AND CONNECTOR (SOLAR ENERGY CONTROL UNIT - SOLAR BATTERY)

    CAUTION:

    Be sure to wear insulated gloves.


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

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the rear seat cushion assembly LH.

      Click here

    3. B006IB2N01

      Disconnect the N73 solar energy control unit connector.

    4. B006IM3N01

      Disconnect the N71 and N72 solar energy control unit connectors.

    5. Remove the No. 1 solar battery shield panel.

      Click here

    6. Disconnect the N70 solar battery connector.

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

      B006ITHC11
      *a

      Rear view of wire harness connector

      (to Solar Energy Control Unit)

      		 *b

      Rear view of wire harness connector

      (to Solar Battery)
      Standard Resistance (Open)
      Tester Connection Condition Specified Condition
      N73-2 (VBS) - N70-10 (VBS) Power switch off Below 1 Ω
      N73-8 (GVBS) - N70-20 (GVBS) Power switch off Below 1 Ω
      Standard Resistance (Short)
      Tester Connection Condition Specified Condition
      N73-2 (VBS) or N70-10 (VBS) - Body ground and other terminals Power switch off 10 kΩ or higher
      N73-8 (GVBS) or N70-20 (GVBS) - Body ground and other terminals Power switch off 10 kΩ or higher

    8. Connect the cable to the negative (-) auxiliary battery terminal.

    9. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      N73-2 (VBS) or N70-10 (VBS) - Body ground Power switch on (IG) Below 1 V
      N73-8 (GVBS) or N70-20 (GVBS) - Body ground Power switch on (IG) Below 1 V

      Note


      • Turning the power switch on (IG) with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

      • If the power switch is turned on (IG) with the connectors disconnected, other DTCs will be stored. Be sure to clear the DTCs after the inspection.

    11. Turn the power switch off.

    12. Disconnect the cable from the negative (-) auxiliary battery terminal.

    13. Reconnect the N70 solar battery connector.

    14. Install the No. 1 solar battery shield panel.

    15. Reconnect the N71 and N72 solar energy control unit connectors.

    16. Reconnect the N73 solar energy control unit connector.

    17. Install the rear seat cushion assembly LH.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  6. REPLACE SOLAR ENERGY CONTROL UNIT

    Click here

    Result
    Proceed to
    NEXT

    NEXT

  7. CHECK SOLAR BATTERY

    CAUTION:

    Be sure to wear insulated gloves.


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

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the rear seat cushion assembly LH.

      Click here

    3. B006IB2N01

      Disconnect the N73 solar energy control unit connector.

    4. B006IM3N01

      Disconnect the N71 and N72 solar energy control unit connectors.

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

      B006IACC12
      *a

      Rear view of wire harness connector

      (to Solar Energy Control Unit)

      		 - -
      Standard Voltage
      Tester Connection Condition Specified Condition
      N73-2 (VBS) - N73-8 (GVBS) Power switch off 18 to 30 V

    6. Reconnect the N71 and N72 solar energy control unit connectors.

    7. Reconnect the N73 solar energy control unit connector.

    8. Install the rear seat cushion assembly LH.

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE SOLAR BATTERY Click here

  8. REPAIR OR REPLACE HARNESS OR CONNECTOR

    Result
    Proceed to
    NEXT

    NEXT

  9. CHECK SOLAR BATTERY

    CAUTION:

    Be sure to wear insulated gloves.


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

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the rear seat cushion assembly LH.

      Click here

    3. B006IB2N01

      Disconnect the N73 solar energy control unit connector.

    4. B006IM3N01

      Disconnect the N71 and N72 solar energy control unit connectors.

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

      B006IACC12
      *a

      Rear view of wire harness connector

      (to Solar Energy Control Unit)

      		 - -
      Standard Voltage
      Tester Connection Condition Specified Condition
      N73-2 (VBS) - N73-8 (GVBS) Power switch off 18 to 30 V

    6. Reconnect the N71 and N72 solar energy control unit connectors.

    7. Reconnect the N73 solar energy control unit connector.

    8. Install the rear seat cushion assembly LH.

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE SOLAR BATTERY Click here