P0968 - OBD Trouble Code

<<See All OBD Codes

The trouble code P0968 can be elucidated as Pressure Control Solenoid "C" Control Circuit/Open. The pressure control solenoid valve is an electronic pressure regulator which would command the transmission line pressure depending upon the current flow through its coil windings. If there would be a rise in the flow of current, then the magnetic field which is made by the coil would move the solenoid’s plunger further away from the exhaust port. The output fluid pressure would be decreased by opening the exhaust port which is controlled by the PC solenoid valve, which would ultimately decrease the line pressure. The oil pump discharge pressure is regulated by the line pressure solenoid valve to suit the conditions of the driving in response to a signal sent from the transmission control module.

Want to learn something more about the P0968 fault code? This code is a generic trouble code, meaning it applies to all vehicles equipped with the OBD-II system, especially those made from 1996 up to present. It’s also more common among Audi, Citroen, Chevrolet, Ford, Hyundai, Nissan, Peugeot, and Volkswagen vehicles. Specifications on the definition, troubleshooting, and repairs, of course, vary from one make and model, powertrain configuration type, to another. One thing which you must keep in mind that its symptoms as well as causes would surely vary as it depends upon a number of things.

What causes this problem with the Pressure Control Solenoid "C" Control Circuit/Open?

• Burned or quirky connector
• Imperfect or damaged wiring
• There can be distorted PCM
• Defective pressure control solenoid
• Polluted transmission fluid
• Transmission valve body might be flawed
• The hydraulic passages might be clogged
• Compact transmission filter
• Quirks in the transmission pump

1. Automatic Transmission Filter - Defective car Automatic Transmission Filter can be a major reason why P0968 code depicts. So make sure to replace it online so that you don’t have to face any further issues.
2. Auto Transmission Control Module - Everything is okay with the timing chain and still OBD code P0968 triggering? Then there must be some defects in Auto Transmission Control Module. Replace them as soon as possible.
3. Powertrain Control Module - P0968 code flashing? Get your Powertrain Control Module inspected from a mechanic.
4. Engine Control Module - If everything is alright with Auto Transmission Control Module, then there is surely some defect in Engine Control Module. Get it replaced before the situation gets worse.
5. Automatic Transmission Fluid - P0968 code can display due to some issues in the Automatic Transmission Fluid. So it is very important to replace the Automatic Transmission Fluid with us at equitable prices.
6. Electronic Control Unit - Do you remember when was the last time you got your car Electronic Control Unit checked up? A dirty Electronic Control Unit can cause a lot of issues like displaying P0968 code
7. Body Control Module Component - Are there some faults in your Body Control Module Component? Don’t waste time and get them replaced or else P0968 code can turn up.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• There can be expansion in the fuel consumption
• Visibility in the check engine light
• A lot of warmth in the transmission
• Transmission slink when it is moving
• Transmission might move hardly
• There can be symptoms of misfire
• The transmission is put into limp mode by the powertrain control module

The repairs which you will have to do to correct this fault code are simply straightforward; you can surely pinpoint the necessary repairs on the basis of your diagnosis. Have a look at some common fixes:

• Make sure to mend the defaults in PCM
• It is essential to restore the quirky transmission valve body
• The malfunctioning connectors should be repaired or replaced as per the need
• Carefully adjust the faults in the fluid and filter
• The transmission pump should be restored to working order
• Recondition the non-functioning wiring
• It is necessary to perform proper service of the unsound pressure control solenoid

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of Transmission Oil, Manual Transmission Fluid, Honda Transmission Fluid, Pcm Car, Atf Fluid, Toyota Transmission Fluid, Atf Oil and many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this fault code:

• A diagnostic scanner, a digital volt/ohmmeter, and a reliable source of vehicle information will be required to accurately diagnose a code P0968. Consult your source of vehicle information for applicable technical service bulletins.
• There can be some situations where it would save a lot of your precious time in the long run by pointing you in the correct way. After that the next step is to perform a thorough visual inspection to check the associated wiring for obvious defects such as scraping, rubbing, bare wires, or burn spots. Then check the connectors and connections for security, corrosion and damaged pins.
• This process must include all wiring connectors and connections to the battery, alternator, PCM, and the voltage regulator. Some charging system configurations may be more complex including relays, fuse-able links and fuses in some circumstances. The visual inspection should also include the condition of the serpentine belt and the belt tensioner.
• The belt should be tight with a sight amount of flexibility and the tensioner must move freely and apply the appropriate amount of pressure on the serpentine belt. Based on the vehicle and the charging system configuration a defective or damaged voltage regulator will require an alternator replacement in most circumstances. The advanced steps would become very automobile specific and would need an equipment which is acceptable to perform correctly.
• These procedures would need a digital multimeter and the particular technical references for the vehicle. A charging system diagnostic device would be the perfect tool which can be used in this situation.
• The need of voltage would keep on changing as it all depends upon the particular year as well as model of your automobile. The voltage of the battery should be appropriately 12 volts and the alternator output must be higher to compensate for electrical draws and charge the battery as well.
• The lack of voltage indicates a faulty alternator, voltage regulator or a wiring issue. If the alternator voltage output is in the appropriate range, this is an indication that the battery requires replacement or a wiring issue exists. If there is absence of a power source or ground, continuity testing may be required to check the integrity of the wiring, alternator, voltage regulator and other components.
• Continuity tests should always be performed with the power removed from the circuit and the normal readings for wiring and connections should be 0 ohms of resistance unless otherwise specified by the technical data. No continuity would simply indicate that there is defective wiring which requires immediate replacement.

Common Mistakes When Diagnosing The P0968 Code

• Engine might start failing
• There can be some defects in the transmission pump
• Defects in the internal transmission
• Some issues related to the driveline