P0439 Volvo 960 OBD Code

OBD/2 P0439 error code description and symptoms.

The issue covered by the bulletin involves a power steering noise/whine or fluid leak from the power steering pump, gear or high pressure side power steering hose during extreme low outdoor temperature operation.

In most cases, the TCM is integrated into a single housing with the PCM. Nevertheless, the section of the module which controls (automatic) transmission function may be powered up separately. In any case, the TCM is typically powered using switched (only present with the ignition switch in the ON, start, or run position) voltage. This circuit is normally equipped with a fuse, fusible link, and/or a relay. Frequently, the PCM and TCM are powered using the same relay albeit by separate circuits. Access to a reliable vehicle information source will yield necessary details of the TCM power circuit for the specific vehicle in question.

P0439 Volvo 960 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P0439 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 p0439 catalyst heater control circuit bank 2 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 p0439 catalyst heater control circuit bank 2.

Common Causes of Volvo 960 P0439 OBD2 Code

A common cause of code P0439 is the failure of P0439 Catalyst Heater Control Circuit Bank 2, but there are several other possible causes as well, such as ;

Exhaust gas leaks
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Faulty Intake Valve Timing Control Solenoid Valve
Spark plugs may be faulty

P0439 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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P0439 Volvo 960 OBD Code

P0439 Volvo 960 Error Code Repair Process :

Common Causes of Volvo 960 P0439 OBD2 Code

P0439 code for other Volvo cars