P3911 Trouble Code

View P3911 obd/2 error code description and symptoms. P3911 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.

Circuit High Input codes like P3911 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

Difficulty Level (Easy)
Level
Repair Time (45 Min.)
Time
Cost Prediction : $ 80-120

P3911 Error Code Repair Process :

If your hpu (hydraulic pump unit) pressurisation failure 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 P3911 and engine control unit are in charge of monitoring a bunch of different hpu (hydraulic pump unit) pressurisation failure, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool P3911 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 P3911

A common cause of code P3911 is the failure of HPU (Hydraulic Pump Unit) Pressurisation Failure, but there are several other possible causes as well, such as ;

P3911 code for all cars

You can view according P3911 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P3911 Suminoe Flying +P3911 Ford Courier +P3911 Nag K5 +P3911 Costin Amigo +P3911 Skoda S

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