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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 72 (Electronically Controlled Brake System (HEV) - Diagnostic Codes (4 Of 6)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1345: Linear Solenoid Valve Offset Learning undone; DTC C1368: Linear Solenoid Valve Offset [01/2019 - 09/2022] >> Procedure

DTC C1345: Linear Solenoid Valve Offset Learning undone; DTC C1368: Linear Solenoid Valve Offset [01/2019 - 09/2022]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [01/2019 - 09/2022]

      Chassis > ABS/VSC/TRAC > Clear DTCs 

    2. Turn the power switch off.
    3. Turn the power switch on (IG).
    4. Check that DTCs other than C1345, C1349 and C1392 are not output.

      Refer to DTC CHECK / CLEAR [01/2019 - 09/2022]

      Chassis > ABS/VSC/TRAC > Trouble Codes 

      OK

      DTCs other than C1345, C1349 and C1392 are not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to  DIAGNOSTIC TROUBLE CODE CHART [01/2019 - 04/2020]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [04/2020 - 09/2022] 

    Result: 

    OK 

    See step  2

  2. PERFORM AIR BLEEDING 
    1. Perform the air bleeding procedure in Bleed Brake System.

      Refer to BLEEDING [01/2019 - 09/2022]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. PERFORM LINEAR SOLENOID VALVE OFFSET LEARNING 
    1. Turn the power switch off.
    2. Check and ensure the following conditions required for performing linear solenoid valve offset learning and then perform linear solenoid valve offset learning.

      Refer to INITIALIZATION [01/2019 - 09/2022]

      Chassis > ABS/VSC/TRAC > Utility 

      Tester Display
      ECB Utility
      1. The auxiliary battery voltage is 11 to 15.5 V when the power switch is on (READY).
      2. The brake actuator (brake booster with master cylinder assembly) is not hot.
      3. The hybrid control system is not malfunctioning.
      4. The shift state indicator shows that the shift lever is in P.
      5. The READY light in the combination meter assembly is illuminated.
      6. The brake pedal is not depressed.
      7. The parking brake is released.
      8. DTC C1451 (Motor Drive Permission Malfunction) is not output. (If it is output, bleed the air from the high-pressure tube.)

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. RECONFIRM DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [01/2019 - 09/2022]

      Chassis > ABS/VSC/TRAC > Clear DTCs 

    2. Turn the power switch off.
    3. Turn the power switch on (IG).
    4. Check if the same DTC is output.

      Refer to DTC CHECK / CLEAR [01/2019 - 09/2022]

      Chassis > ABS/VSC/TRAC > Trouble Codes 

      Result

      Result Proceed to
      DTCs C1345 and C1368 are not output. A
      DTCs C1345 and/or C1368 are output. B

    Result: 

    A 

    END 

    Result: 

    B 

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to  REMOVAL [01/2019 - 09/2022] 

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