Skoda DSG/CVT Transmission Control Unit Problems + Repairs
Has your Skoda ever gone in to Limp Mode? Do the PRNDS lights ever just start flashing? If so, these could be symptoms of a faulty Automatic Transmission Control Unit, or more commonly known as the Gearbox ECU. Regardless of whether you own an automatic or semi-automatic, S-Tronic or Mechatronic, a Continuously Variable Transmission (CVT) or a Direct Shift Gearbox, all could be diagnosed with this issue. Occasionally these can be repaired by a simple gearbox oil change or a software update; however, this is not always the case as it may be due to a fault in your Transmission Control Module (TCM).

Common DSG / CVT Transmission Controller Concerns
Some of the most common faults that have been reported to us by customers in the past regarding DSG/CVT Transmission Controllers include:

• Power Loss
• Jerking In/Out of Gears
• Gearbox Fails when it Overheats
• Gearbox going into Neutral
• Not going in to Gear
• Loss of Reverse Gear
• “PRNDS” Light Flashing
• Limp Mode (Fail-Safe)

If any of the above faults sound familiar, you may have noticed that the issues can sometimes be irregular; however it starts to gradually worsen depending on the nature of the problem. If the Transmission Control Module is the cause of the failed unit, it can occasionally be repaired, however this is not always the case.

Common TCM related DTC Fault Codes
It can be sometimes difficult to identify a problematic DSG Controller as they do not always bring up warning lights or fault codes. We are aware how frustrating this can be and you will find below a list of the most common DTC Fault Codes that have been associated with DSG Transmission Controller Units:

• 18226 P1818 Pressure Control Valve 2 N216 Electric Error
• 18222 P1814 Pressure Control Valve 1 (N215), Open / Short to Ground
• 18223 P1815 Pressure Control Solenoid 1 (N215), Short to B+
• 18227 P1819 Pressure Control Solenoid 2 (N216), Open / Short to Ground
• 18228 P1820 Pressure Control Solenoid 2 (N216), Short to B+
• 18231 P1823 Pressure Control Solenoid 3 (N217), electrical malfunction
• 18232 P1824 Pressure Control Solenoid 3 (N217), Open / Short to Ground
• 18233 P1825 Pressure Control Solenoid 3 (N217), Short to B+
• 18236 P1828 Pressure Control Solenoid 4 (N218), electrical malfunction
• 18237 P1829 Pressure Control Solenoid 4 (N218), Open / Short to Ground
• 18238 P1830 Pressure Control Valve 4 (N218), Short to Plus
• 18241 P1833 Pressure Control Solenoid 5 (N233), electrical malfunction
• 18242 P1834 Pressure Control Solenoid 5 (N233) Open / Short to Ground
• 18243 P1835 Pressure Control Solenoid 5 (N233) Short to B+
• 18246 P1838 Pressure Control Solenoid 6 (N371), electrical malfunction
• 18247 P1839 Pressure Control Solenoid 6 (N371) Open / Short to Ground
• 18248 P1840 Pressure Control Solenoid 6 (N371) Short to B+
• 19143 P2711 Unexpected / Implausible Mechanical Gear Disengagement, Intermittent
• 17134 P0750 Control Valve 1/Solenoid Valve N88 Function Disturbance
• 17137 P0753 Control Valve 1/Solenoid Valve N88 Electric Error
• 17114 P0730 Gearshift-/ Transmission Surveillance Wrong Gear Transmission Ratio
• 18165 P1757 Power Supply, Interruption
• 17111 P0272 Rounds Count Signal From Engine ECU, No Signal
• 17090 P0706 F125 Drive Position Sensor Signal Implausible
• 17106 P0722 Gearbox Speed Sensor G195 No Signal

This does not list all of them, but if you do find any that is not on this list, get in touch for more information.

Skoda Vehicles Affected by the Common DSG Gearbox ECU Problems
Unfortunately, problems with the Transmission Control Module have been known to affect all Skoda DSG / CVT vehicles. The Skoda models that we have received units from in the past are listed below:

General Part Numbers for Skoda Transmission Control Unit (TCU)
If you are an owner of a faulty DSG Gearbox ECU, you will be aware that the costs of replacing the unit from local dealers are well in the excess of £1000 + VAT. This price will not include programming, which you will have to pay extra for, and it will generally only come with a standard 12 Month Warranty. If you’re offered the option of a second-hand used part to replace your DSG/CVT Transmission ECU, then this will only come with a 30-90 day limited warranty, and again, will require programming at an extra cost.

If you have identified the problem with your DSG Transmission Control Unit, and require a part number, you can find a list of our most common repair or exchange units below – however if you do not find yours on the list, please do not hesitate to call us on 0203 815 9441 for further information about testing and repairing your unit.

My Skoda Has a DSG TCM Module Fault – Can SINSPEED Help Me?
Here at Sinspeed, we hold the latest Automatic Transmission Controller Testing equipment as well as all the major components in stock! Therefore if you have a faulty DSG TCM Module, we will be able to fully bench test all transmission controllers as well as carry out the repairs, including all the programming/coding, ensuring it is fully plug and play! All you need to do is post your part to us, we will diagnose the problems and either repair or replace the unit – it will then be posted back out to yourself fully coded and functional, with no extra programming required.

Not only this, but we also provide a LIFETIME Warranty on all of our DSG / CVT Gearbox ECU’s! So if you want further information about how Sinspeed can help you, give us a call today on 0203 815 9441.

Supplementary Remapping Services for DSG Transmission Controllers
Do you want smoother gear changes with zero Hesitation? Or a 20% increase in gear shift speeds with zero lag? If so – you may want to consider our TCM Controller Remapping service. As well as providing a full Transmission DSG Repair + Replacement service, we are offering a remapping service where by fine-tuning the mapping of the DSG Controller, we can enhance its performance to provide a more superior driving experience. It will be applied to your unit at the same time as the repair; therefore will still be fully Plug + Play. You can find more information regarding our Skoda DSG TCM Remapping Services here.

Give us a call today on 0203 815 9441 if you are looking for a diagnosis or require your DSG Gearbox ECU to be repaired or replaced!