C2278 Trouble Code

View C2278 obd/2 error code description and symptoms. C2278 engine photo

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as C2278. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for C2278

Gear changes are accomplished by a command from the TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

C2278 Error Code Repair Process :

If your unable to bleed - up vacuum in tank check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C2278 and engine control unit are in charge of monitoring a bunch of different unable to bleed - up vacuum in tank, and if they get a reading that's a little out of whack, up pops the check engine light.

C2278 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.

Common Causes of C2278

A common cause of code C2278 is the failure of Unable To Bleed - Up Vacuum in Tank, but there are several other possible causes as well, such as ;

EVAP system hose leaking
Faulty Variable Camshaft Timing (VCT) position solenoid
Dirty Oil
Faulty oil control valve (OCV)

C2278 code for all cars

You can view according C2278 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C2278 Maserati Barchetta

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