SOLAR CHARGING SYSTEM, Diagnostic DTC:P1ECE49

DTC Code DTC Name
P1ECE49 Solar Charging Battery Control System Internal Electronic Failure

DESCRIPTION

Refer to the description for DTC P1ED000.

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The solar energy control unit monitors its internal operation, and will store a DTC and perform fail-safe control if it detects over current in the solar charge system.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P1ECE49 Solar Charging Battery Control System Internal Electronic Failure

Over current is detected in the solar charge system. (Either of the following conditions is met.)


  1. The current of the solar battery is above the specification.

  2. The current of the solar battery is above the specification when the voltage of the solar battery is low.

(1 trip detection logic)

 Solar energy control unit

Solar Charging Warning Light:

Comes on
Related Data List
DTC No. Data List
P1ECD00

  • Solar Charging Battery Current

  • Solar Charging Battery Charging and Discharging Voltage

  • Solar Charging Battery Block Total 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.

PROCEDURE


  1. REPLACE SOLAR ENERGY CONTROL UNIT

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    Result
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    COMPLETED