LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 218 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> DTC P1156: Fuel Select Switch Circuit

DTC P1156: Fuel Select Switch Circuit

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Mariner, and 2006 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P1156 - FUEL SELECT SWITCH CIRCUIT

Description:  This DTC is set when the operating mode reported by the fuel injector interface module does not agree with the operating mode requested by the powertrain control module (PCM).
Possible Causes: 
  • Open or shorted fuel select switch (FSSW) circuit
  • Damaged fuel injector interface module
Diagnostic Aids  :
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - GO to Pinpoint Test HL .