U0399 DTC For Ford Mustang 5

Ford Mustang 5 Engine Specifications:
Engine Type :Single Cylinder Engine
Cylinder Type :W-Type Engine
Engine Air Intake Process :Naturally Aspirated

Your Ford Mustang 5 engine control system detects a problem, the computer stores the diagnostic trouble code U0399 in its memory. To figure out what is wrong with your vehicle you must first extract the U0399 DTC For Ford Mustang 5.

On 1999 and later U0399 Ford Mustang 5 engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.

U0399 Ford Mustang 5 DTC Meaning

U Network Code - Problem is climate control system, lighting, airbags, etc.
0 SAE - Generic
3 IC Module 4X Ref Circuit Intermittent, No Pulses
9 TP Sensor Learn Not Complete
9 A/C System High Pressure High Temperature

The scent may U0399 Ford Mustang 5 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U0399, so if the inside of your car U0399 DTC For Ford Mustang 5 as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

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