C3439 Trouble Code

View C3439 obd/2 error code description and symptoms. C3439 engine photo

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code C3439

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

C3439 Error Code Repair Process :

If your vehicle failed a C3439 test and the C3439 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses audio tape deck mechanism fault a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look audio tape deck mechanism fault: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

C3439 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 C3439

A common cause of code C3439 is the failure of Audio Tape Deck Mechanism Fault, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Continuous oil flow to the VCT piston chamber
Camshaft Position Sensor harness is open or shorted
Camshaft advance mechanism binding (VCT unit)

C3439 code for all cars

You can view according C3439 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3439 Alvis Tb21

+C3439 Isuzu N-serie

+C3439 Volkswagen Transporter

+C3439 Volkswagen Passat B6

+C3439 Jaguar X-400

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

About Us | Contact | Privacy