Dtc C1345-00: Linear Solenoid Valve Offset Learning [11/2021 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
- Check Dtc
- Check That No DTCS Other Than Those Related To Incomplete Learning Are Output.
Chassis > Brake Booster > Trouble Codes
Chassis > Brake/Epb > Trouble Codes
Ok
DTCS Other Than Those Related To Incomplete Learning Are Not Output.
Result
Proceed To Ok Ng
Result:
Ng
Repair Circuits Indicated By Output DTCS
Result:
Ok
See Step 2
- Check That No DTCS Other Than Those Related To Incomplete Learning Are Output.
- Perform Air Bleeding
- Perform The Air Bleeding Procedure In Bleed Brake System.
Refer To Bleeding [11/2021 - ]
Result
Proceed To Next
Result:
Next
See Step 3
- Perform The Air Bleeding Procedure In Bleed Brake System.
- Perform Linear Solenoid Valve Offset Learning
- Check And Ensure The Following Conditions Required For Performing Linear Solenoid Valve Offset Learning And Then Perform Linear Solenoid Valve Offset Learning.
Refer To Reset Memory / Calibration [11/2021 - ]
NOTE:If Dtc C1345-54 Is Output, Wait 4 Minutes Or More With The Ignition Switch Turned Off, Then Perform Learning After Turning The Ignition Switch To On And Clearing The DTCS.
Chassis > Brake/Epb > Utility
Tester Display Calibration - The Auxiliary Battery Voltage Is 11 To 15.5 V When The Ignition Switch Is Turned On (Ready).
- The Brake Booster With Master Cylinder Assembly Is Not Hot.
- The Hybrid Control System Is Not Malfunctioning.
- The Shift State Indicator Shows That The Vehicle Shift State Is Park (P).
- The Ready Light In The Combination Meter Assembly Is Illuminated.
- The Brake Pedal Is Not Depressed.
- The Parking Brake Is Released.
- DTCS C1451-00 Or C1451-51 Is Not Output. (If It Is Output, Bleed The Air From The High-Pressure Tube.)
Result
Proceed To Next
Result:
Next
See Step 4
- Check And Ensure The Following Conditions Required For Performing Linear Solenoid Valve Offset Learning And Then Perform Linear Solenoid Valve Offset Learning.
- Clear Dtc
Result:
Next
See Step 5
- Reconfirm Dtc
- Based On The Freeze Frame Data And Interview With The Customer, Attempt To Reproduce The Conditions When The Malfunction Occurred.
- Check If The Same Dtc Is Output.
Chassis > Brake/Epb > Trouble Codes
Result
Result Proceed To Dtc C1345-00 Is Not Output. A Dtc C1345-00 Is Output. B
Result:
A
End
Result:
B
Replace Brake Booster With Master Cylinder Assembly. Refer To Removal [11/2021 - ]