Pinpoint Test N: DTC C1288-Primary Brake Pressure Sensor Input Circuit Failure

NOTE: When diagnosing this DTC, the primary brake pressure sensor is the C821 pin 1, Circuit 9-CF64 (BN/YE). The pressure sensor connectors can be connected to either the primary or the secondary pressure sensor and still operate correctly, therefore the wire color must be looked at before continuing diagnostics.

Fig 1: Pinpoint Test N Chart - Primary Brake Pressure Sensor Input Circuit Failure (DTC C1288) (N1-N2)

Courtesy of FORD MOTOR CO.

Fig 2: Pinpoint Test N Chart - Primary Brake Pressure Sensor Input Circuit Failure (DTC C1288) (N3-N4)

Courtesy of FORD MOTOR CO.

Fig 3: Pinpoint Test N Chart - Primary Brake Pressure Sensor Input Circuit Failure (DTC C1288) (N5)

Courtesy of FORD MOTOR CO.