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Home >> Lexus >> 2007 >> GS 430 >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Electronically Controlled Brake System >> DTC C1341/62 Front Hydraulic System RH Malfunction; DTC C1342/63 Front Hydraulic System LH Malfunction; DTC C1343/64 Rear Hydraulic System RH Malfunction; DTC C1344/65 Rear Hydraulic System LH Malfunction >> Description

DTC C1341/62 Front Hydraulic System RH Malfunction; DTC C1342/63 Front Hydraulic System LH Malfunction; DTC C1343/64 Rear Hydraulic System RH Malfunction; DTC C1344/65 Rear Hydraulic System LH Malfunction: Description

The skid control ECU inputs the operating fluid pressure of each wheel cylinder using the wheel cylinder pressure sensors in order to control the braking force of each wheel.

DTCs may be stored if brake fluid leaks, wheel cylinder vibrates due to uneven wear of the brake disc rotor, of foreign matter enters the solenoid valve.

DTCs may be stored if the line pressure drops during air bleeding.

DTC DETECTING CONDITION CHART

DTC No. Information Code DTC Detection Condition Trouble Area
C1341/62 551
552
Hydraulic pressure control on FR wheel has deteriorated.
  • Fluid leakage
  • Brake actuator assembly
553 There is a malfunction, such as leakage in the pressure increase control valve of FR wheel.
  • Fluid leakage
  • Disc rotor
  • Brake actuator assembly
554
555
There is a malfunction, such as leakage in the pressure decrease control valve of FR wheel.
C1342/63 561
562
Hydraulic pressure control on FL wheel has deteriorated.
  • Fluid leakage
  • Brake actuator assembly
563 There is a malfunction, such as leakage in pressure increase control valve of FL wheel.
  • Fluid leakage
  • Disc rotor
  • Brake actuator assembly
564
565
There is a malfunction, such as leakage in pressure decrease control valve of FL wheel.
C1343/64 571
572
Hydraulic pressure control on RR wheel has deteriorated.
  • Fluid leakage
  • Brake actuator assembly
573 There is a malfunction, such as leakage in pressure increase control valve of RR wheel.
  • Fluid leakage
  • Disc rotor
  • Brake actuator assembly
574
575
There is a malfunction, such as leakage in pressure decrease control valve of RR wheel.
C1344/65 581
582
Hydraulic pressure control on RL wheel has deteriorated.
  • Fluid leakage
  • Brake actuator assembly
583 There is a malfunction, such as leakage in pressure increase control valve of RL wheel.
  • Fluid leakage
  • Disc rotor
  • Brake actuator assembly
584
585
There is a malfunction, such as leakage in pressure decrease control valve of RL wheel.