SOLAR CHARGING SYSTEM, Diagnostic DTC:P1EA412, P1EA414

DTC Code DTC Name
P1EA412 Solar Charging Voltage Sensor Circuit Short to Auxiliary Battery
P1EA414 Solar Charging Voltage Sensor Circuit Short to Ground or Open

DESCRIPTION

The hybrid 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 relays.

The solar energy control unit monitors the voltage of the HV battery.

B006HPIC01
*1 Solar Charging Battery DC/DC Converter *2 Auxiliary Battery DC/DC Converter
*3 Hybrid Battery DC/DC Converter *4 Main DC/DC Converter (Inverter with Converter Assembly)
DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P1EA412 Solar Charging Voltage Sensor Circuit Short to Auxiliary Battery

HV battery voltage sensor short to +B.

When the CHRB relay and CHRG relay are operating, the HV battery sensor voltage is more than 4.8 V for 3 seconds or more.

(1 trip detection logic)

  • Solar energy control unit

  • HV battery charger wire

  • No. 1 HV battery junction block assembly

  • No. 2 HV battery junction block assembly

  • Wire harness or connector

Solar Charging Warning Light:

Comes on
P1EA414 Solar Charging Voltage Sensor Circuit Short to Ground or Open

HV battery voltage sensor short to GND or open.

When the CHRB relay and CHRG relay are operating, the HV battery sensor voltage is less than 0.2 V for 3 seconds or more.

(1 trip detection logic)

  • Solar energy control unit

  • HV battery charger wire

  • No. 1 HV battery junction block assembly

  • No. 2 HV battery junction block assembly

  • Wire harness or connector

Solar Charging Warning Light:

Comes on
Related Data List
DTC No. Data List

P1EA412

P1EA412

  • Hybrid Battery Voltage*1

  • Hybrid Battery Voltage Sensor Voltage*1

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.

Click here


  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.

WIRING DIAGRAM

B006J7JE05

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.

    Click here

    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.

Click here

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
      Only P1EA412 or P1EA414 is output. A
      DTC P1EA412 or P1EA414 and other DTCs are output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART

    A

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

    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. 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.

      Click here

      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

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

    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 console box assembly.

      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. B006J62N01

      Check the connection of the U13 solar energy control unit connector.

    6. Disconnect the U13 solar energy control unit connector.

    7. Check the contact pressure of each terminal of the U13 solar energy control unit connector and check for foreign matter or arc marks on the terminals.

      Result
      Result Proceed to
      The terminals are connected securely and there are no contact problems. There are no arc marks or foreign matter. A
      The terminals are not connected securely and there is a contact problem. There are arc marks or foreign matter. B
      The terminals are not connected securely and there is a contact problem. There are no arc marks or foreign matter. C
      The terminals are connected securely and there are no contact problems. There are arc marks or foreign matter. B

    8. Reconnect the U13 solar energy control unit connector.

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

    10. Reconnect the N73 solar energy control unit connector.

    11. Install the rear seat console box assembly.


    B

    REPLACE MALFUNCTIONING PARTS

    C

    CONNECT SECURELY

    A

  4. CHECK CONNECTOR CONNECTION CONDITION (NO. 2 HV BATTERY JUNCTION BLOCK ASSEMBLY CONNECTOR)

    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 HV battery shield panel.

      Click here

    3. B006J5HN03

      Check the connection of the U9 No. 2HV battery junction block assembly connector.

    4. Disconnect the U9 No. 2 HV battery junction block assembly connector.

    5. Check the contact pressure of each terminal of the U9 No. 2 HV battery junction block assembly connector and check for foreign matter or arc marks on the terminals.

      Click here

      Result
      Result Proceed to
      The terminals are connected securely and there are no contact problems. There are no arc marks or foreign matter. A
      The terminals are not connected securely and there is a contact problem. There are arc marks or foreign matter. B
      The terminals are not connected securely and there is a contact problem. There are no arc marks or foreign matter. C
      The terminals are connected securely and there are no contact problems. There are arc marks or foreign matter. B

    6. Reconnect the U9 No. 2 HV battery junction block assembly connector.

    7. Install the No. 1 HV battery shield panel.


    B

    REPLACE MALFUNCTIONING PARTS

    C

    CONNECT SECURELY

    A

  5. CHECK CONNECTOR CONNECTION CONDITION (NO. 1 HV BATTERY JUNCTION BLOCK ASSEMBLY CONNECTOR)

    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 HV battery shield panel.

      Click here

    3. B006HM6N03

      Check the connection of the U10 No. 1 HV battery junction block assembly connector.

    4. Disconnect the U10 No. 1 HV battery junction block assembly connector.

    5. Check the contact pressure of each terminal of the U10 No. 1 HV battery junction block assembly connector and check for foreign matter or arc marks on the terminals.

      Click here

      Result
      Result Proceed to
      The terminals are connected securely and there are no contact problems. There are no arc marks or foreign matter. A
      The terminals are not connected securely and there is a contact problem. There are arc marks or foreign matter. B
      The terminals are not connected securely and there is a contact problem. There are no arc marks or foreign matter. C
      The terminals are connected securely and there are no contact problems. There are arc marks or foreign matter. B

    6. Reconnect the U10 No. 1 HV battery junction block assembly connector.

    7. Install the No. 1 HV battery shield panel.


    B

    REPLACE MALFUNCTIONING PARTS

    C

    CONNECT SECURELY

    A

  6. CHECK HV BATTERY CHARGER WIRE (CHECK FOR OPEN)

    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 console box assembly.

      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. B006J62N01

      Disconnect the U13 solar energy control unit connector.

    6. Remove the No. 1 HV battery shield panel.

      Click here

    7. B006J5HN03

      Disconnect the U9 No. 2 HV battery junction block assembly connector.

    8. B006HM6N03

      Disconnect the U10 No. 1 HV battery junction block assembly connector.

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

      B006HFKC01
      *a

      HV Battery Charger Wire

      (Solar Energy Control Unit Side)

      		 *b

      HV Battery Charger Wire

      (HV Battery Junction Block Assembly Side)
      Standard Resistance
      Tester Connection Condition Specified Condition
      U13-1 (DCHB) - U9-1 (DCHB) Power switch off Below 1 Ω
      U13-2 (DCHG) - U10-1 (DCHG) Power switch off Below 1 Ω

    10. Reconnect the U10 No. 1 HV battery junction block assembly connector.

    11. Reconnect the U9 No. 2 HV battery junction block assembly connector.

    12. Install the No. 1 HV battery shield panel.

    13. Reconnect the U13 solar energy control unit connector.

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

    15. Reconnect the N73 solar energy control unit connector.

    16. Install the rear seat console box assembly.

      Result
      Result
      OK
      NG

    NG

    REPLACE HV BATTERY CHARGER WIRE Click here

    OK

  7. CHECK HV BATTERY CHARGER WIRE (CHECK FOR SHORT)

    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 console box assembly.

      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. B006J62N01

      Disconnect the U13 solar energy control unit connector.

    6. Remove the No. 1 HV battery shield panel.

      Click here

    7. B006J5HN03

      Disconnect the U9 No. 2 HV battery junction block assembly connector.

    8. B006HM6N03

      Disconnect the U10 No. 1 HV battery junction block assembly connector.

    9. B006I88C02
      *1 Shield Ground
      *a

      HV Battery Charger Wire

      (Solar Energy Control Unit Side)

      Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

      Note

      Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      Standard Resistance
      Tester Connection Condition Specified Condition
      U13-1 (DCHB) - U13-2 (DCHG) Power switch off 10 MΩ or higher
      U13-1 (DCHB) - Body ground and shield ground Power switch off 10 MΩ or higher
      U13-2 (DCHG) - Body ground and shield ground Power switch off 10 MΩ or higher

    10. Reconnect the U10 No. 1 HV battery junction block assembly connector.

    11. Reconnect the U9 No. 2 HV battery junction block assembly connector.

    12. Install the No. 1 HV battery shield panel.

    13. Reconnect the U13 solar energy control unit connector.

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

    15. Reconnect the N73 solar energy control unit connector.

    16. Install the rear seat console box assembly.

      Result
      Result
      OK
      NG

    OK

    REPLACE SOLAR ENERGY CONTROL UNIT Click here

    NG

    REPLACE HV BATTERY CHARGER WIRE Click here