What is the PCM on a Volkswagen Jetta?
The Volkswagen Jetta is equipped with an onboard computer that has different modules that control various aspects of the vehicle. The ECM is the electronic control module, which tracks and controls electronic devices in the vehicle. The PCM is the powertrain control module, which monitors and controls aspects of the Jetta’s powertrain system.
What causes a Volkswagen Jetta engine control module to fail?
Protect that reliability by reacting quickly to engine problems. When you see signs of problems with your Volkswagen Jetta engine control module, AutoZone has the solution. A failed engine control module causes failed starts, unexplained drops in fuel efficiency, and general performance problems.
What is the diysave10 code for Volkswagen Jetta?
Use Code: DIYSAVE10 Online Ship-to-Home Orders Only Your Volkswagen Jetta is designed to provide you with reliable performance and an enjoyable driving experience. Protect that reliability by reacting quickly to engine problems.
How do you reset the computer on a Jetta?
This is typically accompanied by a warning light on the control panel. Both modules of the computer can be reset using an OBD II scan tool. Plug the cord from the scan tool into the diagnostic port, located below the steering column toward the driver’s door. Turn the ignition switch to “ON.”
How does the transmission work on a Volkswagen Jetta?
The transmission in a Volkswagen Jetta contains a large number of electronic components. These components are controlled by a stand-alone computer called the transmission control unit, or TCU. When the TCU senses a problem with the transmission, it stores a diagnostic trouble code, or DTC, in its memory.
What does MFI stand for on a VW Jetta?
Some call it MFI (Multi Function Indicator) or MFD (Multi Function Display) but both are correct because both appeared on the menu depending on the year. After 2010 the display became white/black instead of red and the lowline display became full size. After 2011, the Jetta uses a short half screen display again.