DTC

C1288, C1290, C1953

Brake fluid pressure sensor system

DETECTION CONDITION

• C1288

• The pressure from the brake fluid pressure sensor when the system starts up is not within specification.

• C1290

• The standard brake fluid pressure calculated in the DSC HU/CM when not braking exceeds the specification.

• C1953

• The output voltage from the brake fluid pressure sensor is not within specification.

POSSIBLE CAUSE

• Open or short circuit in the brake fluid pressure sensor circuit in the DSC HU/CM

• Malfunction in the brake fluid pressure sensor

STEP

INSPECTION

ACTION

1

• Clear the DTCs from the memory.

  (See ON-BOARD DIAGNOSIS[DYNAMIC STABILITY CONTROL (DSC)].)

• 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

• Are any other DTCs output?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS[DYNAMIC STABILITY CONTROL (DSC)].)

No

DTC troubleshooting completed.