HYBRID CONTROL SYSTEM, Diagnostic DTC:P1EA41C

DTC Code DTC Name
P1EA41C Hybrid/EV Control Battery Voltage Sensor / Solar Charging Voltage Sensor Voltage Out of Range

DTC SUMMARY


  1. MALFUNCTION DESCRIPTION

    The solar charging voltage sensor is built into the solar energy control unit and detects the output voltage of the DC high voltage circuit in the solar energy control unit. Solar charging voltage sensor information is sent from the solar energy control unit to the hybrid vehicle control ECU. The hybrid vehicle control ECU compares the solar charging voltage signal (VSOL signal) with the HV battery voltage sensor signal (VB signal) and will detect a malfunction if the difference is large.

    The cause of this malfunction may be one of the following:


      Solar energy control unit (VSOL) internal circuit malfunction

    • Voltage sensor (VCHG) malfunction


      Battery ECU assembly (VB) internal circuit malfunction

    • Voltage sensor (VB) malfunction

DESCRIPTION

The solar energy control unit sends output voltage information to the hybrid vehicle control ECU via CAN communication.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P1EA41C Hybrid/EV Control Battery Voltage Sensor / Solar Charging Voltage Sensor Voltage Out of Range

When HV battery is being charged by solar charging, the difference between the solar charging voltage signal (VSOL signal) and HV battery voltage sensor signal (VB signal) is large.

(1 trip detection logic)

 Solar energy control unit Does not come on

Solar Charging Warning Light:

Comes on
Related Data List
DTC No. Data List
P1EA41C

  • Smoothed Value of Solar Charge Hybrid Battery DC/DC Converter Input Voltage

  • Charging Voltage for Hybrid Battery

  • Hybrid Battery Voltage

  • AC Charging Positive Relay Drive Request

  • AC Charging Positive Relay Status

  • AC Charging Negative Relay Drive Request

  • AC Charging Negative Relay Status

CONFIRMATION DRIVING PATTERN

Tech Tips

After repair has been completed, clear the DTC 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.

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL, HV BATTERY)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

      Note

      Do not turn the power switch on (READY) before completing repairs as this may cause a malfunction.

    3. Enter the following menus: Powertrain / Hybrid Control and HV Battery / Trouble Codes.

    4. Check for DTCs.


      Powertrain > Hybrid Control > Trouble Codes
      Powertrain > HV Battery > Trouble Codes
      Result
      Result Proceed to
      P1EA41C only is output, or DTCs except the ones in the table below are also output. A
      DTCs of hybrid control system in the tables below are output. B
      DTCs of hybrid battery system in the tables below are output. C
      Malfunction Content System Relevant DTC
      System malfunction Hybrid control system P1AC413 Hybrid/EV Battery Stack 1 Current Interrupt Device Circuit Open
      Hybrid battery system P1AC413 Hybrid/EV Battery Stack 1 Current Interrupt Device Circuit Open
      P1AC49E Hybrid/EV Battery Stack 1 Current Interrupt Device Stuck On
      P1AC513 Hybrid/EV Battery Stack 2 Current Interrupt Device Circuit Open
      P1AC59E Hybrid/EV Battery Stack 2 Current Interrupt Device Stuck On
      P1AC613 Hybrid/EV Battery Stack 3 Current Interrupt Device Circuit Open
      P1AC69E Hybrid/EV Battery Stack 3 Current Interrupt Device Stuck On
      P1AC713 Hybrid/EV Battery Stack 4 Current Interrupt Device Circuit Open
      P1AC79E Hybrid/EV Battery Stack 4 Current Interrupt Device Stuck On
      P1AC813 Hybrid/EV Battery Stack 5 Current Interrupt Device Circuit Open
      P1AC89E Hybrid/EV Battery Stack 5 Current Interrupt Device Stuck On

      Tech Tips


      • P1EA41C 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.)

    5. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    C

    GO TO DTC CHART (HYBRID BATTERY SYSTEM) Click here

    A

  2. CHECK DTC OUTPUT (HYBRID CONTROL, HV BATTERY AND SOLAR CHARGING CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control, HV Battery and Solar Charging Control / Trouble Codes.

    4. Check for DTCs.


      Powertrain > Hybrid Control > Trouble Codes
      Powertrain > HV Battery > Trouble Codes
      Powertrain > Solar Charging Control > Trouble Codes
      Result
      Result Proceed to
      P1EA41C only is output, or DTCs except the ones in the table below are also output. A
      DTCs of hybrid control system in the tables below are output. B
      DTCs of hybrid battery system in the tables below are output. C
      DTCs of solar charging system in the tables below are output. D
      Malfunction Content System Relevant DTC
      Microcomputer malfunction Hybrid control system P0A1F94 Hybrid/EV Battery Energy Control Module Unexpected Operation
      Hybrid battery system P060A47 Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
      P060B16 Hybrid/EV Battery Energy Control Module A/D Processing Circuit Voltage Below Threshold
      P060B49 Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure
      Solar charging system P1EDB49 Solar Charger Control Module A/D Processing Internal Electronic Failure
      Communication system malfunction Hybrid control system U011187 Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message
      U113A87 Lost Communication with Solar Charging Control Module Missing Message
      Hybrid battery system P060687 Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message
      P060A87 Hybrid/EV Battery Energy Control Module Processor from Monitoring Processor Missing Message
      Solar charging system U029387 Lost Communication with Hybrid/EV Powertrain Control Module Missing Message
      Sensor and actuator circuit malfunction Hybrid control system P0B231C Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range
      Hybrid battery system P0D0A15 Hybrid/EV Battery Charging System Positive Contactor Control Circuit Short to Auxiliary Battery or Open
      P0D1115 Hybrid/EV Battery Charging System Negative Contactor Control Circuit Short to Auxiliary Battery or Open
      P0E2D00 Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance
      P1A001C Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range
      P1A051C Hybrid Battery Stack 3 Cell Voltage Detection Voltage Out of Range
      P1A0A1C Hybrid Battery Stack 4 Cell Voltage Detection Voltage Out of Range
      P1A101C Hybrid Battery Stack 5 Cell Voltage Detection Voltage Out of Range
      P1AFD1C Flying Capacitor/Internal Control Module Hybrid/EV Battery Monitor Voltage Out of Range
      P301A1C Hybrid Battery Stack 1 Cell Voltage Detection Voltage Out of Range
      Solar charging system P1EA412 Solar Charging Voltage Sensor Circuit Short to Auxiliary Battery
      P1EA414 Solar Charging Voltage Sensor Circuit Short to Ground or Open
      System malfunction Hybrid control system P0D4C1C Hybrid/EV Battery Charger Hybrid/EV Battery Input Voltage Sensor Voltage Out of Range
      P1EA917 Solar Charging Control Module Circuit Voltage Above Threshold

      Tech Tips


      • P1EA41C 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.)

    5. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    C

    GO TO DTC CHART (HYBRID BATTERY SYSTEM) Click here

    D

    GO TO DTC CHART (SOLAR CHARGING SYSTEM) Click here

    A

  3. SIMULATION TEST


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Clear the DTCs and freeze frame data.


      Powertrain > Hybrid Control > Clear DTCs

    5. Enter the following menus: Powertrain / Hybrid Control / Data List / Hybrid Battery SOC.

    6. Check that "Hybrid Battery SOC" shows 70% or less.


      Powertrain > Hybrid Control > Data List
      Tester Display
      Hybrid Battery SOC

    7. Turn the power switch off and wait for 2 minutes or more.

    8. Start the remote air conditioning system and wait for 20 seconds or more.

    9. Connect the electric vehicle charger cable assembly, and plug-in charge the vehicle for 1 minutes or more.

    10. Disconnect the electric vehicle charger cable assembly and wait for 10 seconds or more.

    11. Turn the power switch on (IG).

    12. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    13. Check for DTCs.


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Result Proceed to
      P0D4C1C is output. A
      Except above B

    14. Turn the power switch off.


    A

    GO TO DTC CHART (P0D4C1C) Click here

    B

    REPLACE SOLAR ENERGY CONTROL UNIT Click here