P278C - OBD Trouble Code

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The trouble code P278C can be defined as Kick Down Switch Circuit Low. The kick down switch circuit is being monitored by the transmission control module. This trouble code would be set by the TCM when the kick down switch circuit would not be as per the specifications set by the manufacturer.

The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile. It is the kick down switch which would tell the transmission when to downshift the transmission so that the automobile is able to accelerate faster. If an improper switch is sent by the kickdown switch to the transmission control module (TCM), then this error code would start flashing.

What causes this problem with the Kick Down Switch Circuit Low?

• Malfunctioning kick down switch
• Kick down switch harness might be open or little
• Substandard electrical connection in the kick down switch circuit

1. Kick Down Switch - Is your automatic transmission shifting hard enough for you to experience a jolt in the steering wheel? Then it is surely not a good warning sign, it would be nice if your get your kick down switch replace at times.
2. Engine Control Module - It is not always the components, but the ECM that can also be faulty. It can cause misinterpretation of correct data thus leading to wrong operational decisions which will affect the transmission and overall engine performance. Thus, replace faulty module and reprogram it now!
3. Automatic Transmission Module - A defective transmission module will affect the gear shift mechanism and also affected during acceleration and deceleration. This will lead to affected engine performance and fuel delivery system. Thus, replace faulty transmission module now!
4. Powertrain Control Module - Powertrain Control Module can also be faulty in rare cases and thus needs through checks for system and software errors. Thus check and replace it, if required.
5. Electronic Control Unit - The ECU manages the cooling system to control the battery operating temperatures and thus must be replaced if found faulty. Thus, buy new ECU modules and components from us!
6. Diagnostic Tool - Make use of quality diagnostic tools to resolve any OBD error code. Buy quality diagnostic tools from us!

Willing to know some common symptoms of OBD Trouble Code P278C? Your wish is our demand. Have a look at them below:

Common Symptoms

• Visibility in the check engine light
• Fall in the engine performance

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P278C:

• It is essential to restore the flawed kick down switch harness
• The kick down switch should be restored to working order
• Recondition the non-functioning kick down switch circuit
• It is necessary to perform proper service of the unsound ECU

There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high grade kick down switch, transmission control module, engine control module, ECM, powertrain control module, PCM, TCM, switch valve, pcm car, ecm car, ecm module, pcm module and a lot more for our precious customers.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• A technician begins by hooking the vehicle to an OBD-II scanner to verify that the code is present, and check for other codes. The freeze frame data along with current data is recorded, and the codes are then cleared to see if they reoccur.
• Visual inspection of the wiring and connectors to check for loose connections, corrosion, or shorts is done.
• A specialized tool may be used to test the kick down switch. Other tests of the kick down switch and its components may help pinpoint the problem, as well as inspection of the wiring and connectors.
• Disconnect and check the resistance and signal voltage from the kick down switch circuit. If all the components check out, inspect for the fault in the PCM as it can sometimes store wrong OBD code and thus might need replacement or reprogramming.

Common Mistakes When Diagnosing The P278C Code

• Some issues related to the kick down switch
• Failure in the transmission control module
• Issues related to the wiring