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Home >> Lexus >> 2021 >> LS 500h RWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/O Advanced Park) - Diagnostic Codes (2 Of 3) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Advanced Park) >> DTC C1345: Linear Solenoid Valve Offset Learning undone; DTC C1368: Linear Solenoid Valve Offset [10/2020 - 10/2023] >> Description

DTC C1345: Linear Solenoid Valve Offset Learning undone; DTC C1368: Linear Solenoid Valve Offset [10/2020 - 10/2023]: Description

The skid control ECU assembly stores and corrects the individual differences in the brake pedal stroke sensor assembly, actuator solenoids, and stroke simulator solenoid. Perform initialization and calibration of the linear solenoid valve if any of these parts is replaced.

The skid control ECU assembly receives the shift state is park (P) signal from the hybrid vehicle control ECU assembly via the CAN communication system.

These DTCs are cleared when the linear valve offset learning results are normal.

DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note
C1345 Linear Solenoid Valve Offset Learning undone 501
502
503
504
Linear valve offset learning undone.
  • INF Code: 501
    • Linear valve offset learning for front wheel RH is undone.
  • INF Code: 502
    • Linear valve offset learning for front wheel LH is undone.
  • INF Code: 503
    • Linear valve offset learning for rear wheel RH is undone.
  • INF Code: 504
    • Linear valve offset learning for rear wheel LH is undone.
Perform linear valve offset learning and check for DTCs. If no DTCs are output again, the valve is normal. Only DTC C1345 (INF code 501, 502, 503 or 504) is stored: Does not come on
SAE Code C1345 is stored: Comes on
INF Code 501, 502, 503 and 504: SAE Code C1345
C1368 Linear Solenoid Valve Offset 505 Offset learned value out of specification.
  • Perform linear valve offset learning and check for DTCs. If no DTCs are output again, the valve is normal.
  • Brake actuator assembly
Does not come on -