P279C - OBD Trouble Code

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The trouble code P279C can be explained as Transfer Case Gear Neutral Incorrect Ratio. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile.

If the transfer case control module would detect a variation in the voltage coming from the transfer case that is outside the parameters set by the automobile manufacturer, then it would store the P279C error code. This would also give rise to the illumination of the check engine light.

What causes this problem with the Transfer Case Gear Neutral Incorrect Ratio?

• Some issues related to the transponder key electronic control unit
• Unlocked transponder key electronic control unit harness
• Unsatisfactory electrical connection in the transponder key electronic control unit circuit

1. Engine Control Module - If there is any corrosion or breaks in the internal wiring of the harness, then it can cause a short in the ECM or can also cause corrosion in the ECM through the wiring harness. You can always rely on us as we have the best auto parts for our customers.
2. Powertrain Control Module - The onboard computer, or powertrain control module is the brain of the engine control system. Now if the brain is not working properly, then neither is the car engine. Get it replaced before the situation gets worse.
3. Automatic Transmission Module - If the transmission module is faulty, then the vehicle might experience erratic gear shifts and throttle response. The engine might also stall will accelerating and slowing down. Thus replace faulty automatic transmission module, if required.
4. Electronic Control Unit - Is your car jump starting on reverse polarity? Or are you facing some intermittent starting issues? If yes, then it indicates that your electronic control unit is bad. So it is very important to replace the defective electronic control unit with us at equitable prices.
5. Diagnostic Tools - Buy quality diagnostic tools to check and diagnose OBD code P279C error with the help of experienced mechanic. Visit us today!

There could be countless symptoms that would accompany this fault code. Willing to know some common symptoms of OBD Trouble Code P279C? Your wish is our demand. Have a look at them below:

Common Symptoms

• Check engine light might come into signal
• Disabled 4-wheel drive system

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• Make sure to mend the faulty transponder key electronic control unit
• Rehabilitate the defaults in the transponder key electronic control unit circuit
• Carefully adjust the faults in the transponder key electronic control unit harness

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of transfer case gear, transfer case control module, body control module, powertrain control module, engine control module, pcm car, ecm car, electronic control module and a lot more. We are sure that now all your issues would be resolved.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P279C code to be stored:

• The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle.
• After performing a careful inspection, every of the stored codes and freeze frame data are retrieved as it can help down the way for further diagnosis process.
• Most often he has to inspect the transfer case gear itself to see if they are faulty or damaged. Additional error codes that are stored in the vehicle are also addressed.
• The mechanic performs a continuity test between the PCM and solenoid to check the resistance.
• If the solenoid or the control modules are not faulty, he will then retune the code and test drive the vehicle.
• On test driving, if the P279C code does not return soon, he will know that an erratic condition exits.
• But if the error returns instantaneously, he will check every component of the control module as well as the circuit like connectors, wires, harness, fuses etc for any possible fault.
• If any component is damaged, he will fix them right away.
• After performing this repair, he will inspect the transfer case gear as well.
• If the level is below the manufacturer’s specification, it has to be refilled and if the fluid is murky or contaminated it needs to be replaced.
• Every time a repair work is carried out, make sure that the mechanic test drives the vehicle after every repair so that the diagnosis is successful. This can eventually help him to know as to where the error occurred.

Common Mistakes When Diagnosing The P279C Code

• Malfunctioning transfer case control module
• There can be a failure in transfer case internally
• Wiring problems