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Home >> Toyota >> 2023 >> Prius LE >> Repair and Diagnosis (Single Page) >> Electrical >> Charging Systems >> Solar Charging System - Diagnostic Codes, Symptom Tests & Circuit Tests >> Solar Charging System >> DTC P1EDB-49: Solar Charger Control Module A/D Processing Internal Electronic Failure [03/2023 - ] >> Confirmation Driving Pattern
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Confirmation Driving Pattern

HINT: 

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

Refer to UTILITY [03/2023 - ]

  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

    HINT: 

    • Make sure no part of the solar roof is shaded.
    • If the solar roof is dirty, clean it.
  2. Turn the ignition 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 ECU assembly.
  4. Wait for 30 seconds or more, then connect the low voltage connectors of the solar energy control ECU assembly 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 ignition switch to ON, wait for 5 to 10 seconds, and then turn the ignition switch off.

    HINT: 

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

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

    HINT: 

    • While waiting, the HV battery will be charged by the solar charging system. However, depending on certain conditions, charging may not be performed.
    • When the HV battery is fully charged, high voltage charging to the HV battery is not performed.
    • 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 ignition switch is turned to ACC.
      • The ignition switch is turned to ON.
      • The ignition switch is turned to ON (READY).
      • The HV battery heating system is operating.
      • The remote air conditioning system is operating.
  8. Check that solar charging is being performed.

    HINT: 

    Be sure to check that high voltage battery charging is being performed by the solar roof.

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