DTC C1288 [DSC/RSC]

id0402b3811400

DTC
C1288
Brake fluid pressure sensor system
DETECTION CONDITION
•  The pressure from the brake fluid pressure sensor when the system starts up is not within specification.
POSSIBLE CAUSE
•  Open or short circuit in the brake fluid pressure sensor circuit in the DSC/RSC HU/CM
•  Brake fluid pressure sensor malfunction
•  DSC/RSC HU/CM malfunction
•  Conventional brake system malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT CONVENTIONAL BRAKE SYSTEM
•  Inspect the conventional brake system for the following:
―  Normal master cylinder operation
―  Brake fluid leakage between the master cylinder and DSC/RSC HU/CM
―  Normal brake switch operation
•  Is the conventional brake system normal?
Yes
Go to the next step.
No
Replace the malfunctioning part, then go to the next step.
2
INSPECT BRAKE FLUID PRESSURE SENSOR
•  Inspect the brake fluid pressure sensor.
•  Is the brake fluid pressure sensor normal?
Yes
Go to the next step.
No
Replace the DSC/RSC HU/CM, then go to the next step.
(See DSC/RSC HU/CM REMOVAL/INSTALLATION [L.H.D.].)
(See DSC/RSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
3
VERIFY NO ABNORMALITY ON BRAKE FLUID PRESSURE SENSOR
•  Clear the DTCs from the memory.
•  Are the same DTCs present?
Yes
Replace the DSC/RSC HU/CM, then go to the next step.
(See DSC/RSC HU/CM REMOVAL/INSTALLATION [L.H.D.].)
(See DSC/RSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
No
Go to the next step.
4
VERIFY THAT NO OTHER DTCS ARE PRESENT
•  Are any other DTCs output?
Yes
Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSIS [DSC/RSC].)
No
DTC troubleshooting completed.