DTC C1288, C1440 [DSC]

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DTC C1288, C1440 [DSC]

B3E040243000W23

DTC | C1288, C1440 | Brake fluid pressure sensor

DETECTION CONDITION

• C1288

  - The voltage value from the brake fluid pressure sensor is not within specification.

• C1440

  - The value output from the brake fluid pressure sensor when braking does not change.
  - The pressure value from the brake fluid pressure sensor is not within specification when decelerating.
  - The pressure value from the brake fluid pressure sensor when not braking exceeds specification.

POSSIBLE CAUSE | • Brake fluid pressure sensor malfunction • 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. (See Clearing DTCs Procedures.) • 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 DTC Table.)
No | DTC troubleshooting completed.