P0780 - OBD Trouble Code

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The trouble code P0780 can be explained as Transmission Shift Malfunction.

It would mean that an issue in the automatic transmission shifting has been detected. The trouble is generally caused due to mechanical failure or the electronic malfunction. You must keep this in mind that this fault code is exclusive to vehicles with automatic transmission.

Do you want to know more about the P0780 fault code? Don’t worry! Parts Avatar Canada is here at your service.

It is the PCM or a stand-alone transmission control module which control the automatic transmissions. The transmission controller uses the input signals from an array of engine and transmission sensors so that it can calculate the transmission shift strategy. The controller then activates the electronic solenoid which would then allow high pressure fluid to flow into the appropriate hydraulic circuit and would allow the transmission to up or down shift as per the need.

What causes this problem with the Shift Malfunction?

• There can be a failure in the shift solenoid
• Transmission fluid might be grubby or polluted
• Less transmission fluid
• There can be some internal blockages which might prevent fluid from proceeding correctly
• Malfunctioning powertrain control module
• Defects in the TCM

1. Speed Sensor - A faulty Speed Sensor can be troublesome. You can always rely on us as we have best auto parts for our customers.
2. Automatic Transmission Fluid - If everything is alright with PCM, then there is surely some defect in Automatic Transmission Fluid. Get it replaced before the situation gets worse.
3. Powertrain Control Module - P0780 code can display due to some faults in the Powertrain Control Module. So, it is very important to replace the Powertrain Control Module with us at equitable prices.
4. Body Control Module Component - Do you remember when was the last time you got your Body Control Module Component checked up? A dirty Body Control Module Component can cause a lot of issues like displaying P0780 code.
5. Automatic Transmission Sensor - Poor Automatic Transmission Sensor can cause a lot of difficulties, so why not get it replaced at time?

There could be countless symptoms which that would accompany with this fault code. Willing to know some common symptoms of OBD Trouble Code P0780? Your wish is our demand. Have a look at them below:

Common Symptoms

• Transmission skidding
• Declining fuel efficiency
• There can be a failure to shift into or out of gear
• Issue of transmission stuck in “limp-home” mode
• Transmission might start overheating
• Illumination of the check engine light
• Crushing shifting

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:

• Repair or replace the flawed connections
• Make sure to mend the faulty shift solenoids
• You must fix the topping off the transmission fluid
• It is essential to restore the flawed transmission fluid
• Repair or replace the quirky wiring

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 automatic transmission module, oil pressure sensor, vehicle speed sensor, wheel sensor, transmission sensor 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 P0780 code to be stored:

Just like many other DTC codes, the first thing which should be done while diagnosing the P0780 trouble code is to connect an OBD II scanner to the car’s communications port. This is generally situated on the driver side under the dash. The technician will read the code (or codes) and then clear the system. A test drive will be needed to make sure the code resets.

After that the next step would be to check the level of transmission fluid (low fluid is one of the most common causes). Now if you will find that there is less transmission fluid, then there would be a need to top it off, and then the code should be cleared and the car should be taken out for a test drive once again. Sometimes, this is all that is required. If the transmission fluid is grubby, then there would be a need to drain it and then it should be refilled. If the transmission fluid smells burned or contains finings, then you should remove the pan and the mechanic will examine for signs of damage. In this instance, a transmission rebuild may be required.

Now if the level of fluid and its condition are nice, the technician will then examine the shift solenoids, as well as their wiring harnesses. The solenoids which are failed might cause this error code, it is also possible that there is damage to the harness, or corroded wiring connections. The mechanic should also inspect the pump’s pressure using a manual gauge to ensure that pressure readings are in line with manufacturer specifications. If you find out that they are not, then it means that the pump is defective.

Common Mistakes When Diagnosing The P0780 Code

A big mistake which is made by a number of people is to simply replace the shift solenoids without performing a proper inspection as there can be issue with some other auto part. The actual fault might be within the transmission fluid level or condition. It might also be related to a defective shift solenoid circuit, rather than the solenoid itself.