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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 >> P115A - Low Fuel Level - Forced Limited Power

P115A - Low Fuel Level - Forced Limited Power

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P115A - LOW FUEL LEVEL - FORCED LIMITED POWER

Description:  Fuel level information is sent from the instrument cluster to the powertrain control module (PCM) on the communication link. If an excessively low fuel level input message is received by the PCM from the instrument cluster, the PCM limits the fuel rail pressure (FRP) and sets DTC P115A.
Possible Causes: 
  • Empty fuel tank
  • Fuel conditioning module circuitry
  • Fuel tank control module
  • Instrument cluster
  • PCM
Diagnostic Aids:  Monitor the FLI PIDs with key ON, engine running. A concern is present if the FLI percentage PID is at 25% and the FLI voltage PID is less than 0.90 volt with a non-matching fuel gauge.
Application    Key On Engine Off  Key On Engine Running  Continuous Memory 
All   refer to PINPOINT TEST QH .