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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 AG: Accelerator Pedal Position (APP) Sensor >> Introduction >> Fault Detection/Management

Fault Detection/Management

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Ford RV Cutaway, 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

Any detected malfunction of the APP sensor will not illuminate the malfunction indicator lamp (MIL).

An APP signal that is detected out of range high or low by the PCM will cause the engine to ignore the APP signal and will only allow the engine to operate at low idle.

CAUTION: The PCM harness connectors must be properly seated and the connector latch properly attached to eliminate possible driveability concerns or a no start condition. Installing the PCM connectors on an angle may cause an improper connection, misdiagnosis and damaged components. Install the connector until the lever pivots and seats itself. Apply light pressure to get the connector into position on the PCM and then fully seat the connector.
NOTE: Visually inspect the harness connectors for corrosion, damage, proper mating and correct pin tension.
NOTE: When the PCM is disconnected additional DTCs will be set. Clear all DTCs after restoring the vehicle.
Fig 1: Identifying PCM Body Harness Connector Terminals
G03532287Courtesy of FORD MOTOR CO.
Fig 2: Identifying Sensor Connector Terminals (F-Super Duty/Excursion APP Connector)
G03532288Courtesy of FORD MOTOR CO.
Fig 3: Identifying Sensor Connector Terminals (E-Series APP Connector)
G03532289Courtesy of FORD MOTOR CO.
NOTE: Base idle should be no lower than 0.5 volt.
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