Error Code P06AC: What It Means & What To Do?

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If your vehicle has set the OBD-II error P06AC code then don’t panic, we are here to provide you with all the information you need, to diagnose and resolve this error code. In simple words the OBD error P06AC is a Transmission Control Module (TCM) failure. Every vehicle will have a transmission control module, whose job is to record the modules temperature when it starts. It uses an internal sensor in-order to do this, when the temperature does not change a min of 2 degrees at the least, within a span of the first two minutes of startup, it will set code P06AC. This helps in maintaining the correct temperature in the vehicle to avoid damages.

As mentioned above the control solenoid valve assembly possesses a built-in temperature sensor of the TCM. When an over temperature situation is sensed, the TCM shuts down to protect itself from further damage. The TCM stays off until the over temperature condition doesn’t resolve completely. This ensures that the vehicle is in the state to start working without the fear of any further damage.

What causes this problem with the PCM/ECM/TCM Internal Temperature Sensor "B" Range/Performance?

• Corrosion or damages in the connector
• Loose or defective ground strap of the control module
• Fault in the wiring or damaged wiring
• Abnormalities in the PCM, ECM, or TCM

1. Catalytic Converter - Try to repair the damages or purchase new from Parts Avatar online 24x7.
2. Transmission Control Module - Replace if repairing isn’t solving the issue. We have a large range of products and ship across Canada.
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4. Temperature Sensor - Has to be in good working conditions to serve its purpose, if repairing doesn't help, simply replace with us. Order online today!
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Willing to know some common symptoms of OBD Code P06AC? Your wish is our command. Have a look at the few most common symptoms:

Common Symptoms

• Engine refuses to start
• Engine may stall after starting
• Malfunction in shifting
• Transmission warning light is illuminated
• Check engine lamp is illuminated

We have listed out some ways which would help you to correct the occurrence of OBD Code P06AC. They are mentioned here as follows:

• Clean all the corrosion from connectors
• Repair or replace all the faulty wiring
• Repairing or replacing faulty ground straps with new ones
• Flashy or replace the entire PCM, ECM or TCM

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of Catalytic Converter, Transmission Control Module, ECM, Temperature Sensor, Powertrain Control Module and many more. Now all your problems would vanish within no time. All of our products are available for a huge range of vehicles to suit compatibility needs.

If you want to easily diagnose this P06AC fault code, then all you have to do is to follow the steps which are mentioned below:

Get hold of your vehicles TSB, and match the error code to the symptoms exhibited by your specific vehicle, model and year of making. These Technical Service Bulletins (TSBs) will come very handy in the first step, which is to locate the control modules, and inspect them for obvious defects. The wiring, is the first stop, look for any rubbing, scraping, burning, open or shorted wires, bare wires etc. Rectify these damages by repairing or replacing them. The proceed on to checking the ground wires and also the ground straps for damages. You will have to correct these damages, so either repair them or replace with the best. After this, you can check the connectors to see how secure they are, if there are signs of corrosion or damaged pins. Again, halt to check see your you can fix them. Repairing is the first option; the next option would be replacement. Continue your inspection moving it to the PCM module, ECM module and Transmission control solenoid. Refer the TSB for the technical specifications so that you can compare and make note of any configurations needed.

Common Mistakes When Diagnosing the P06AC Code

• Internal failure of transmission
• Transmission Control Module (TCM) has stopped working
• Low transmission fluid level noticed