C2781 Ford Megastar OBD Code

OBD/2 C2781 error code description and symptoms.

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code C2781

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

C2781 Ford Megastar Error Code Repair Process :

For battery saver power relay circuit short to battery check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. C2781 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks battery saver power relay circuit short to battery with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Ford Megastar C2781 OBD2 Code

A common cause of code C2781 is the failure of Battery Saver Power Relay Circuit Short To Battery, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Camshaft advance mechanism binding (VCT unit)
Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
Faulty TCM or TCM programming

C2781 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

C2781 Ford Megastar OBD Code

C2781 Ford Megastar Error Code Repair Process :

Common Causes of Ford Megastar C2781 OBD2 Code

C2781 code for other Ford cars