P07AB OBD Error Code: Problem & Solutions

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The hybrid control module of a vehicle is responsible for monitoring the transmission clutch to see if it is operating correctly. If the control module is detecting that the clutch is not releasing as commanded it will proceed to set OBD error code P07AB. In such a situation the hybrid control module may also put the vehicle on ‘limp mode’, in order to limit the engine performance so that additional damage can be avoided.

The Engine Control Module proactively monitors and adjusts other sensors and systems to ensure proper diagnosis of this transmission problem. It is only after that, that it sets P07AB code. It is important to solve this issue so that the everyday driving doesn’t cause more damage to your vehicle. The code may also be arising due to internal electrical malfunction like open or shorted circuits or even water intrusion. The letter ‘E’ in this error refers to a few different distinctions, there may be a particular circuit or wire issue, or a problem with a particular friction element present within the transmission. It’s best to refer your vehicle's manual for locations of parts and components and also other specifications required during diagnosis. When the ECM notices a slip in the internal ‘E’ friction element inside the transmission becoming stuck or not engaging as needed, it will set the code P07AB.

What causes this problem with the Transmission Friction Element “E” Stuck ON?

• Internal friction element worn out
• Contaminated ATF
• Open, shorted or chafed wiring issue
• Uneven sizes of tire
• Uneven rotational speed/circumference causing problems (e.g. low tire pressures, brake stuck on, etc.)
• TCM (Transmission Control Module) malfunction
• ECM (Engine Controls Module) defect
• Water damages in the module and/or harness
• Low ATF

1. Powertrain Control Module - Repair and replace as needed. You should only opt for the best quality PCM for your car and we have just that at Parts Avatar.
2. Engine Control Module - Try to fix the error code P07AB problem that you are facing with your ECM, if that’s not helping, you can replace it easily with us. Simply order online and have it delivered to your door!
3. Automatic transmission Module - Don’t hesitate to replace a faulty transmission, order 24x7 with us. We ship free to the remotest corners or Canada on orders over $99.
4. Transmission Control Module - Purchase a new one from Parts Avatar, we have the widest range of branded car parts. You can easily find the ones compatible with your vehicle.

It’s always good to be aware of the common symptoms associated with this OBD error code. We have made a lost just for you.

Common Symptoms

• Handling becomes uneven
• Transmission stars to slip
• Erratic shifting of transmission
• Abnormal shift patterns observed
• Harshness in shift selection
• Leak of the ATF (Automatic Transmission Fluid)
• Low torque noticed
• Unusual power output

Here are some ways with which you can correct the P07AB code:

• Repair or replace Transmission Control
• Check transmission fuel and change it if contaminated
• Increase level of Transmission fluid if it’s low
• Repair or replace ECM

Don’t panic if your OBD Code is flashing up as we are here at your service. Have a look at our superior variety of PCM, ECM, Body Control Module, Engine Control Module and many more. Now all your problems would vanish within no time.

Here are some steps that can help follow in order to diagnose this P07AB error code:

Start off by researching the Technical Service Bulletins for your specific vehicle. Remember that advanced diagnostic steps are more elaborate and require more information to go ahead with. You will also require appropriate tools for diagnosis too.

Step 1 - In this step you will perform the basic maintenance procedures. Since this code is related to the transmission, start by checking the fluid. The ATF (Automatic Transmission fluid) needs to be clean, and free from contaminants and debris. There should also be no burned smell coming from it. In general, it is important to maintain punctual schedules of maintenance for your vehicle, to avoid such errors recurring frequently. Perform the filter+fluid+gasket check, especially if you do not recall the last time they were checked.

Step 2 - You will find a junction connector when looking to find connector/harness for the transmission system. There may be one “master” connector present, make sure you are working with the right one and to be sure refer our vehicles manual. Now check if the connector is seated properly and there’s a good electrical connection present. The connector located at the A/T will be subject to vibrations that can cause the connections to become loose, this may also cause physical damage. ATF could also saturate the connectors and wiring and cause issues not just now but also in the future.

Step 3 - It is important to be aware of the overall condition of your vehicle. One system malfunctioning effect the other systems it is connected to, since all of them work in sync with each other. Check for uneven tires, worn out parts of suspension, incorrect wheels etc. these could all be causes of issues in the system. In fact, they may also harm other systems, hence it is important to even things out and may be able to get rid of this code.

Common mistakes when diagnosing the P07AB code

• Internal transmission has failed
• Transmission fluid level is well below required level
• Failure of Transmission valve body solenoid