P2804 - OBD Trouble Code

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The trouble code P2804 can be explicated as Transmission Range Sensor "B" Circuit Intermittent. It is the engine control module which would examine the transmission range sensor "B" circuit. This trouble code would be set by the ECM when the transmission range sensor "B" circuit would not be as per the parameters set by the manufacturer.

This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The transmission range sensor is also known as the PRNDL input or neutral safety switch. It would tell the transmission control module and the engine control module that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc.

What causes this problem with the Transmission Range Sensor "B" Circuit Intermittent?

• Imperfect transmission range sensor "B"
• Defective wiring "B"
• The PCM or TCM might be damaged

1. Engine Control Module - ECM faults are rare but can be a big problem as faulty ECM will cause wrong vehicle operations and can also result in wrong OBD codes getting stored in the system which can also cause misdiagnosis. Thus, replace faulty ECM components now!
2. 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!
3. Electronic Control Unit - The ECU coordinates with the temperature sensor to control the blower fan for keeping the battery temperatures under control. So, replace faulty ECU components now!
4. Powertrain Control Module - Check for PCM error which might be due to circuit faults that might require complete replacement and reprogramming. Replace it now!
5. Diagnostic Tool - In order to detect the error, one needs high grade diagnostic tools. Visit us today to grab amazing deals.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P2804 here:

Common Symptoms

• Illumination in the service engine soon light
• Rising in the consumption of the fuel
• Transmission not shifting in the right manner

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 P2804:

• It is essential to restore the flawed wiring "B"
• Rehabilitate the defaults in the PCM
• The malfunctioning transmission range sensor "B" should be repaired or replaced as per the need
• Recondition the non-functioning transmission control module

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If you want to easily diagnose this trouble code, then you must follow the steps which are mentioned here as below:

Whenever we put our foot down on the brakes, then all of us expect our car to quietly slow down and come to a stop. The power our foot applies on the brake pedal is assisted by hydraulic pressure. Our foot's force engages a piston and calliper with brake pads attached to put pressure on the rotor. The P2804 fault code particularly refers to the camshaft (cam) timing. Now in this case, if the cam timing would be over-retarded, then there would be an illumination in the engine light and then the error code would be set.

Common Mistakes When Diagnosing the P2804 Code

• Powertrain control module related issues
• Defective transmission range sensor
• Quirks in the transmission control module
• Issues related with the car wiring