Guide To P2759 OBD Error Code Solutions

<<See All OBD Codes

The trouble code P2759 can be explicated as Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical. If the engine control module would detect a variation in the voltage coming from the torque converter clutch pressure control solenoid signal delivered performance that is outside the parameters set by the automobile manufacturer, then it would store the P2759 fault code. This would give rise to the flashing up of the check engine light.

The P2759 fault code would start indicating when the PCM would detect an abnormality in the torque converter clutch pressure control solenoid circuit. The computer controlled automatic transmission utilizes different degrees of torque converter clutch application which is also known as torque converter lock up to maximize engine power and optimize fuel efficiency.

What causes this problem with the Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical?

• The torque converter clutch pressure control solenoid might be flawed
• Torque converter clutch pressure control solenoid harness is not shut or tiny 
• There might be a poor electrical connection in the torque converter clutch pressure control solenoid circuit

1. Engine Control Module - Want to know the most common reason behind the failure in the engine control module? Corrosion or damage because of moisture can cause ECM failure. Corrosion might enter the ECM through the wiring harness and moisture can enter by a failure in the seals in the ECM itself.
2. Intake Valve - A potential issue with the intake valve is engine performance issues. If the intake valve has an issue it can cause the vehicle to experience engine performance issues such as misfires, a decrease in power and acceleration, a decrease in fuel efficiency, and even stalling. Thus, replace damaged valve now!
3. Powertrain Control Module - The PCM makes the engine and transmission work in tandem. Any issue with the powertrain control module will cause major problems with the efficient running of the vehicle.
4. Electronic Control Unit - If your vehicle fails to start for no apparent reason, this is also a good indicator that there can be some issues with the ECU. If you check the car battery, starter and other common electrical components, and the vehicle still does not start, a quirky electronic control unit should be the next logical thing to consider.
5. Automatic Transmission Module - Sometimes the transmission module is unable to communicate or correctly anticipate the speed of the vehicle and thus creates difficulty in gear shift leading to sluggish acceleration, throttle response and stalling. Thus, can also hamper a lot of components physically and thus must be checked and replaced, if required.
6. Diagnostic Tool - In order to fix these errors, you need a few diagnostic tools to get your car problems pointed out easily. Our diagnostic tools collection will come in handy to do so and resolve all your vehicle problems. Visit today!

It is vital 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 P2759 here:

Common Symptoms

• Check engine light might come into signal
• Issues in transmission shifting
• Rising fuel consumption

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:

• The torque converter clutch pressure control solenoid circuit should be restored to working order
• Recondition the non-functioning engine control module
• It is necessary to perform proper service of the unsound torque converter clutch pressure control solenoid
• Adjust the flawed torque converter clutch pressure control solenoid harness

Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best priced pcm, ecm, torque converter, transmission control module, torque converter solenoid, torque converter clutch pressure control solenoid, auto transmission shift solenoid, pcm module, ecm module, torque converter clutch solenoid and a lot more to help you out in fixing your car.

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

• This is a general type of error code which is diagnosed with the help of a scanner. Generally, every vehicle with an automatic transmission produced since the mid-eighties is equipped with some type of computer controlled automatic transmission system.
• A sophisticated computerized control system is utilized by the OBD-II equipped vehicles that calculates a number of engine drivability inputs with vehicle speed inputs, engine/turbine speed inputs, and transmission output speed inputs to determine the desired gear ratio necessary to achieve maximum fuel efficiency, to optimize engine performance, and provide the greatest engine and transmission longevity.
• The input data is calculated by the powertrain control module and initiates upshifting and downshifting by using strategically designed shift solenoids to actuate fluid transfer between the hydraulic circuits of each set of corresponding gears.
• If there are a lot of stored shift solenoid codes then it would indicate that a transmission component slipping or delayed engagement condition has occurred. The automatic transmission uses a high-pressure pump to circulate fluid through the transmission hydraulic circuits in the transmission housing and valve body.
• Now if the transmission pressure is not sufficient enough to actuate gear changes, this type of code might exist. Insufficient fluid pressure is most often caused due to less or grubby transmission fluid condition.
• You must begin the transmission diagnosis with an inspection of the transmission fluid dipstick. Just make sure that the fluid level should be within manufacturer’s specified recommendations and that the fluid is in nice condition.
• Fluid that smells burned or unusual in any way should be considered inappropriate. If the fluid is burned, then it would indicate that the transmission has been operated during a low fluid level condition and may have experienced catastrophic internal mechanical failure.
• If the fluid smells or appears burned, then the transmission pan should be removed and inspect for the presence of clutch material and other debris.
• If such contaminants are present in the transmission pan, a total rebuild, fluid flush and replacement, and a new torque converter would be needed before the transmission will function correctly. If no debris is found in the transmission pan, then you should check all internal wiring and connectors. Search for shorted or burned wiring and replace circuitry and connectors as required.
• Most applications will require replacement of the full internal transmission harness if discrepancies are noted. If the system wiring, connectors, and components appear to be in normal working order, connect the scanner to the diagnostic connector and record all stored trouble codes and freeze frame data.
• The intermittent conditions can be diagnosed easily with the help of this information that may have contributed to this code being stored. Now once the codes have been cleared, operate the vehicle to see if the code returns. If the code fails to immediately return, then there is a situation of intermittent condition
• Intermittent conditions can prove to be challenging to diagnose and in extreme cases may have to be allowed to worsen before a correct diagnosis can be made. Now if the transmission fluid is in decent shape, but the overall level of the fluid is less, then you should add enough fluid to locate a leak and repair it.
• Fill the transmission with fluid, allow the vehicle to reach normal operating temperature, and test drive it to see if the transmission operates normally and to determine whether the code will return. If the transmission operates normally and the code doesn’t return, then it was likely caused by transmission slippage due to a low fluid level/pressure condition. If the code is returning back again and the transmission slips or suffers from delayed engagement, check pump pressure using a manual pressure gauge.
• Obtain a hydraulic pressure diagram pertaining to the vehicle and thread the end of the gauge into the appropriate opening on the transmission housing to record pump pressure. Your findings should be compared with manufacturer’s specifications and make repairs as per the requirements.
• Typical causes of low pump pressure include clogged hydraulic passages, a defective pump, faulty shift solenoids, or a faulty electronic pressure regulator. There would be a need of transmission removal in the pump replacement and partial disassembly.
• If the code immediately returns, and the transmission seems to operate normally, then inspect for reference voltage and ground signals at the affected shift solenoid. If either the reference voltage or ground circuits are open, then a digital volt/ohmmeter should be used to check for continuity as well as resistance in all circuits.
• Repair or replace system circuits/connectors as required and retest the system to ensure that repairs were successful. Using the manufacturer’s wiring diagram for the affected shift solenoid, test all related circuits and the solenoid itself for resistance and continuity and compare your findings with manufacturer’s specifications. Repair or replace system circuitry, connectors, and/or components that fail to coincide with manufacturer’s specs. Always retest the system to ensure a successful repair.
• If all system circuits are intact connecting the scanner to the diagnostic connector and attempt to manually activate the shift solenoid/s. If the shift solenoid functions properly and all circuits coincide with manufacturer’s specifications, suspect a defective PCM. Just keep in mind that PCM failure is rare and it will require reprogramming during replacement. If the shift solenoid fails to activate manually, replace the solenoid (or solenoid pack) and retest the transmission control system.

Common Mistakes When Diagnosing The P2759 Code

• Flaws in the torque converter
• There can be some issues in the torque converter solenoid
• Failure in the car wiring