P0874 - OBD Trouble Code

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The trouble code P0874 can be described as Transmission Fluid Pressure Sensor/Switch "C" Circuit Intermittent. This fault code is generally an electrical circuit problem, and can be set because of some mechanical problems like internal leakage, cracked or missing check balls in the valve body, low system operating pressure/main line pressure, stuck valve in the valve body and many more. Keep this in mind that this cannot be overlooked during the troubleshooting process, particularly when dealing with an intermittent issue.

Error code P0874 flashing? Steer to our amazing website for a wide range of automobile parts and accessories. We won’t let you down in any way as for us our customers are everything. Visit us as fast as you can. 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 Transmission Fluid Pressure Sensor/Switch "C" Circuit Intermittent?

• There can be an intermittent open in the signal circuit to the TFPS sensor
• Intermittent short to voltage in the signal circuit to the TFPS sensor
• The PCM might not be functioning properly
• Intermittent short to ground in the signal circuit to the TFPS sensor
• Some issues related to the TFPS sensor
• There can be internal mechanical transmission problems

1. Auto Transmission Shift Solenoid - Did your mechanic just found out that there is some fault in the Auto Transmission Shift Solenoid? Buy top notch Auto Transmission Shift Solenoid from us at economical prices.
2. Powertrain Control Module - A broken Powertrain Control Module can cause a lot of issues. It would be nice if you get it replaced on time.
3. Auto Transmission Control Module - Everything is fine with the engine control module and still OBD code P0874 flashing? Then there is definitely some fault with the Auto Transmission Control Module. Get it checked and replace if needed.
4. Oil Pressure Sender - Oil Pressure Sender is an important car part which should never be neglected. May be there is some fault in it due to which P0874 code may start flashing.
5. Fuel Pressure Sensor - A faulty Fuel Pressure Sensor can be troublesome. You can always rely on us as we have best auto parts for our customers.
6. Auto Transmission Valve Body Kit - P0874 code does not really end up spoiling your Fuel Pressure Sensor, but it might also accompany few Auto Transmission Valve Body Kit issues. We have best Auto Transmission Valve Body Kit with us.
7. Body Control Module Component - Are you facing OBD Error Code P0874? Don’t worry as you can fix this issue with new Body Control Module Component. We care for our customers, that’s why we have Body Control Module Component for every make and model.
8. Electronic Control Unit - A broken Electronic Control Unit can cause a lot of issues. It would be nice if you get it replaced on time.

We care for our customers and that’s why we can totally understand your problem. That’s the reason why we have listed out some major symptoms behind the flashing up of OBD Code P0874. They are mentioned here as follows:

Common Symptoms

• Appearance of the service engine soon light
• Change in shift grade
• The vehicle might start off in 2nd or 3rd gear

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 P0874:

• You must fix the defective TFPS sensor
• Make sure to mend the faulty internal mechanical transmission
• It is essential to restore the flawed auto transmission shift solenoid
• Repair or replace the quirky powertrain control module
• Rehabilitate the defaults in the electronic control unit

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Do you wish to diagnose P0874 error code easily? Here are some steps which you should follow in order to diagnose this fault code:

• It is important to conduct a proper diagnosis before doing any repairs of the vehicle. A diagnostic scanner, a reliable source of vehicle information, and a digital volt/ohmmeter (DVOM) will be required in order to arrive at an accurate diagnosis of a code P0874. You can start the process of diagnosis with the power associated trouble code or with a number of code diagnosis. This might be the reason why P0874 error code is appearing. After that the transmission fluid pressure sensor/switch should be situated on your specific automobile.
• The TFPS is generally found attached to the side of the valve body inside the transmission. It can also be situated on the side of the transmission case. Now once it has been located, then the connector as well as wiring should be visually located. You can always search for the wires which are bare, burned spots as well as plastic which has been melted. The connector should be pulled apart and the terminals which are inside the connector should be inspected properly. You must check if they are appearing burnt and if there is a green tint, then it would indicate that there is corrosion.
• This can happen if they are attached outside the case of the transmission. An electrical contact cleaner as well as plastic bristle brush should be used to clean the terminals as per the requirement. It should be allowed to dry properly and then electrical grease should be applied at the places where the terminals are in contact. By using a scan tool, all the diagnostic trouble codes should be cleared up from the memory. Then check if the P0874 code has returned or not. If you find out that it is not appearing again, then it would mean that there were some defects in the connections. Now if this error code returns, then you should definitely test the TFPS sensor as well as the related circuits. The electrical connector at the TFPS sensor should be disconnected with the key off.
• A digital voltmeter should be connected to the ground or low reference terminal at the TFPS sensor wiring harness connector. Then a read lead should be connected to the digital voltmeter. Then the key should be turned on and then engine should be off. You should carefully check the manufacturer's specifications. The reading of the voltmeter should be either 12 volts or 5 volts.
• You can always wiggle the connections to check if they are changing or not. Now if the voltage is not correct, then the ground wire should be repaired properly. Make sure to restore the PCM/TCM. Then one lead of an ohmmeter should be connected to the signal terminal at the TFPS sensor. Then the other lead should be connected to the ground at the sensor. You can always inspect the manufacturers specifications on the resistance of the sensor so that the resistance can be properly tested when no pressure has been applied to it.
• The resistance should be monitored and the connector at the transmission fluid pressure sensor/switch should be wiggled. Now if all the tests have been passed and still the P0874 error code is appearing, then there is some issue with the TFPS sensor or there can be some failures in the internal transmission as well. So, make sure that you replace the TFPS sensor. If you are not sure about it, then you can always take help from the technician. It is essential to program the PCM/TCM rightly.

Common Mistakes When Diagnosing The P0874 Code

• Non-performance of the transmission control module
• Failure in the transmission fluid pressure sensor
• Some issues related to the wiring