20195 Transmission Control Module-Processor Malfuction

Fault code 20195 Transmission Control Module-Processor Malfuction indicate problem at transmission control module. transmission control module use all the other signal coming from all other control module present in vehicle like ABS control module, Engine control module, etc. ABS control module monitor rotation of vehicle tyre speed with the help of ABS sensor fitted in tyre bearnig. send this signal to Transmission control module, transmission control module use this signal to shift gear accordingly. when there is any signal fluctuation occurs between transmission control module and ABS or Engine control module. Fault code 20195 Transmission Control Module-Processor Malfuction store in transmission control module.

It might be happen due to failure of any other control module like ABS control module or some other. in some cases it has been found that this could be heppen due to CAN line wire damage. in audi most of the time transmission control module is located under driver seat. wiring of transmission control module come from under the driver foot area. in rany season due water CAN line get damage from it distribution area. when there is no CAN communication between transmission control module and other control module than fault code may store in transmission control module and other also.

Causes of 20195 Transmission Control Module-Processor Malfuction :

  • Faulty transmission control module.
  • Failure of any other control module.
  • Damage CAN line wiring harness
  • Blown fuse.
  • Darmage wiring harness.
  • Faulty Mechatronic

Symptoms :

  • vehicle may not crank.
  • transmission warning light will illuminate on cluster meter.
  • vehicle may crank but no start.
  • fault code will store in control module.
  • vehicle start but did not move.

How to trouble shoot :

  • Mechanic need use scan tool to scan vehicle so that fault code can be found which is store in control module. Also it will be good that if mechanic have CAN line reading Scop. if have than it will be easy to find that cummincation between transmission control module and other control module. first scan vehicle to find out fault code, rectify its status and presence of it in all other contnrol module like ABS, ECU, etc.
  • If fault code is store in control module and vehicle is not cranking. than check if there is any other reason due to which it is not cranking. if there is something which responsible for not cranking than solve that matter. if all the other things are good, reason behind no crank no start is this fault code.
  • Then mechanic need to find out the location of transmission control module. when found location of transmission control module check power and ground at transmission control module. than with the help of Scope check CAN line communication at transmission control module.
  • If power supply and ground line is good than check CAN line it might be damage. wiring loom of transmission control module come from under driver foot. there is a distribution of CAN line, due to water storage at that area, distribution of that CAN line wire get broken.
  • If there is no CAN communition with transmission control module transmission control module will not work
  • check all the things power supply, ground and CAN communication if they are good. than go to check failure of transmission control module. sometime transmission control module also get fail. due to which fault code may store in control module.

Solution of 20195 Transmission Control Module-Processor Malfuction :

  • Damage CAN wiring harness.
  • Blown fuse.
  • Faulty transmission control module.
  • Faulty mechtronic of transmission control module.

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