DTC C1290, C1953 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2887400

DTC
C1290, C1953
Brake fluid pressure sensor system
DETECTION CONDITION
•  C1290
―  The basic brake fluid pressure value, which is calculated in the DSC HU/CM while the system is not operated and the brake is not applied, exceeds the specified value.
•  C1953
―  The brake fluid pressure sensor signal is continuously more than 13.95 MPa or less than the specified value for 100 ms or more.
FAIL-SAFE
•  Inhibits ABS, TCS, and DSC controls, and illuminates ABS warning light and DSC indicator light.
(If error is detected during a ABS/TCS control, inhibits ABS/TCS control after finishing the control.)
POSSIBLE CAUSE
•  Brake fluid pressure sensor malfunction in DSC HU/CM
•  Open or short circuit in the brake fluid pressure sensor circuit in DSC HU/CM

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY NO ABNORMALITY ON BRAKE FLUID PRESSURE SENSOR
•  Clear the DTCs from the memory.
•  Start the engine and drive the vehicle at 10 km/h {6.2 mph} or more.
•  Are the same DTCs present?
Yes
Replace the DSC HU/CM, then go to the next step.
(See DSC HU/CM REMOVAL/INSTALLATION.)
No
Go to the next step.
2
VERIFY THAT NO OTHER DTCS ARE PRESENT
•  Are any other DTCs output?
Yes
Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
No
DTC troubleshooting completed.