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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 747 (Engine Controls - Pinpoint Tests - 6.0L Diesel (99P E-Series & 99P F450/550)) >> Pinpoint Test AT: FICM Circuit Fuel Delivery Error >> Introduction >> Signal function

Signal function

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The diesel engine power monitor (DEPM) strategy resides in the transmission control module (TCM) located inside the powertrain control module (PCM). The function of the DEPM is to monitor engine RPM when there is no power demand from the accelerator pedal position (APP) sensor.

Under normal engine idle operation, the DEPM RPM value must always be higher than engine RPM. In the event that the engine RPM does exceed the DEPM limit, the DEPM will disable the crank and cam output signal sent by the PCM to the fuel injection control module (FICM).

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