Pinpoint Test M: DTC C1288 - Pressure Transducer Main/Primary Input Circuit Failure

WARNING: This page is about a different car, the 2002 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When diagnosing this DTC, the main/primary pressure transducer is the C147 pin 1, Circuit 9-CF64 (BN/YE). The pressure transducer connectors can be connected to either the main or the redundant pressure transducer and still operate correctly, therefore the wire color must be looked at before continuing diagnostics.

Fig 1: Pinpoint Test M: DTC C1288 - Pressure Transducer Main/Primary Input Circuit Failure (Steps M1 & M2)

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Fig 2: Pinpoint Test M: DTC C1288 - Pressure Transducer Main/Primary Input Circuit Failure (Steps M2 Cont. & M3)

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Fig 3: Pinpoint Test M: DTC C1288 - Pressure Transducer Main/Primary Input Circuit Failure (Steps M4 & M5)

Courtesy of FORD MOTOR CO.

Fig 4: Pinpoint Test M: DTC C1288 - Pressure Transducer Main/Primary Input Circuit Failure (Step M5 Cont.)

Courtesy of FORD MOTOR CO.