P039A Volvo V70 Iii OBD Code

OBD/2 P039A error code description and symptoms.

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.

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.

P039A Volvo V70 Iii Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P039A light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If throttle position (tp) sensor circuit intermittent low voltage so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the throttle position (tp) sensor circuit intermittent low voltage.

Common Causes of Volvo V70 Iii P039A OBD2 Code

A common cause of code P039A is the failure of Throttle Position (TP) Sensor Circuit Intermittent Low Voltage, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Camshaft advance mechanism binding (VCT unit)
Faulty oil control valve (OCV)
Faulty Camshaft Position Sensor

P039A 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.

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

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P039A Volvo V70 Iii OBD Code

P039A Volvo V70 Iii Error Code Repair Process :

Common Causes of Volvo V70 Iii P039A OBD2 Code

P039A code for other Volvo cars