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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2050 (Engine Controls - Diagnostic Subroutines - 6.4L 99R Diesel -- F250-F550 Super Duty) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> P2128 - Throttle/Pedal Position Sensor/Switch E Circuit High

P2128 - Throttle/Pedal Position Sensor/Switch E Circuit High

WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P2128 - THROTTLE/PEDAL POSITION SENSOR/SWITCH E CIRCUIT HIGH

Description:  The powertrain control module (PCM) monitors the accelerator pedal position (APP) sensor for a high voltage concern. The test fails when the APP2 circuit voltage is greater than 4.75 volts.
Possible Causes: 
  • APP2 circuit short to voltage
  • APP sensor
Diagnostic Aids:  An APP2 sensor PID reading may indicate a concern.
Application    Key On Engine Off  Key On Engine Running  Continuous Memory 
All   refer to PINPOINT TEST AG .