P3778 Trouble Code

View P3778 obd/2 error code description and symptoms. P3778 engine photo

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P3778, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code P3778 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

P3778 Error Code Repair Process :

If your air suspension rear height sensor high (se) signal circuit short to ground 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 P3778 and engine control unit are in charge of monitoring a bunch of different air suspension rear height sensor high (se) signal circuit short to ground, and if they get a reading that's a little out of whack, up pops the check engine light.

P3778 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Common Causes of P3778

A common cause of code P3778 is the failure of Air Suspension Rear Height Sensor High (SE) Signal Circuit Short To Ground, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty front heated oxygen sensor
Failures of clutch motion/travel sensors.
Foreign matter caught in fuel filler cap

P3778 code for all cars

You can view according P3778 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P3778 Lancia Ardea

+P3778 Nissan Z Concept

+P3778 Jensen Sv8

+P3778 Daewoo Royale

+P3778 Chevrolet Two-ten

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

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