P2555 OBD-II: Throttle/Fuel Inhibit Circuit High

OBD II Fault Code

• OBD II P2555

OBD-II Code Engine may stall is defined as a Throttle/Fuel Inhibit Circuit High

The Fuel Injector Control Module (FICM) monitors engine speed in relation to the power requested by the driver. If the engine speed gets higher than requested by the engine computer (PCM), the FICM will disable fuel going into the engine, causing the engine to shut off. Code P2555 will be stored. Additional codes may also be present and should be diagnosed and repaired first.

Engine may stall Symptoms

• Engine may stall

Common Problems That Trigger the P2555 Code

• Crankshaft Position Sensor (CKP) failure
• Fuel injection control module (FICM) failure
• Powertrain Control Module (PCM) failure
• Wiring issue