P06AD OBD Error Code: Problem & Solutions

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This OBD code P06AD is titled as PCM/ECM/TCM Internal Temperature Sensor "B" Circuit Low. In simple words in this code the Transmission Control Module makes use of an internal sensor to check the temperature of the modules when they start. If the temperature is not optimum it will set code P06AD.

Here’s some more information about how the P06AD code is set. The process starts off from the control solenoid valve assembly, which has a built-in TCM temperature sensor. This sensor is responsible in detecting over temperature situation of the TCM. When the TCM is aware of the improper temperature, it shuts down and remains in that condition till the problem does away. It does so to protect the TCM from potential damage from heat. It is very important that all parts function in sync and detect the issue as soon as it arises.

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

• Corrosion or damages found in the connectors
• Ground straps of the control module are loose or defective
• Fault or extensive damage in the wiring
• Defectiveness found in the PCM module, ECM module, or TCM

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Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P06AD code by mentioning some major symptoms, these symptoms will help you understand your vehicle and the cause of issue. Take a look at some of the common symptoms exhibited when the P06AD code is set:

Common Symptoms

• Engine will not start upon ignition
• Engine stalls after starting
• Improper activity in shifting
• Transmission warning lamp is lit
• Check engine light is lit

Have a look at some ways with which you can correct the P06AD code. These are just simple correction steps, only upon diagnosis you will be able to find out what exactly has gone and repair or replace those parts accordingly.

• Clean all the corrosion from connectors
• Repair or as per need replace the faulty wiring
• Repairing or replacing faulty ground straps may also be necessary
• Flash or replace the PCM module, ECM module or TCM as required

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Here are some steps which you should follow in order to diagnose this P06AD fault code:

Step one is to get your specific vehicles TSB to refer for troubleshooting process and locating the various components for diagnosis. Ensure you match the TSB perfectly to your vehicle engine, model and year of manufacturing. Only if you are able to get the perfect match, will you be able to follow diagnostic and other instructions correctly.

It is Step two where would be to actually start locating the modules within this circuit to figure out where the issue lies. Once you are sure of them, perform a simple but careful visual inspection. Any damages to the circuits, wires like scraping, rubbing, bare wires or even burn spots will have to accordingly be repaired or replaced. Do this for the ground straps and ground wires too. These too will have to be repaired and replaced subject to the extent of damage.

Next, move on to checking the connectors, ensure they are secure, any corrosion or damaged pins will have to looked out for. Make sure if repairs will resolve the issue, mostly these parts will require a quick replacement. Buying new parts as replacement will keep future issues at bay.

Include the PCM, ECM, and Transmission control solenoid in this examining process, you can get the needed data for configuration from the technical service bulletin. Ensure you follow it correctly, and if there are any doubts you can always take your vehicle to a trained mechanic who has experience in resolving OBD errors of this kind.

Common Mistakes When Diagnosing the P06AD Code

• Internal transmission error repeatedly found
• Transmission Control Module (TCM) fails
• Transmission fluid level has dropped down